Holley EFI MANIFOLD, SBC LATE DP TBI EGR Upper

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Model#300-66
ManufacturerHolley EFI

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Pro-Jection TBI Intake Manifold High Rise Dual Plane w/EGR 1987-later with Cast Iron Heads

Important Downloads:

Instructions for Part# 300-66

Features:

High Rise Dual Plane Design
Holley Pro-Jection TBI Mounting Flange
EGR Provisions
Power band: Idle-6000 RPM
Height: Front 3.91", Rear 5.40"Port Size: 1.89" height 1.15" width

Specifications:

Construction: Cast
Emission Code: 3
Engine: Chevy Small Block V8
Finish: Satin
Front Height: 3.91 inch
Fuel System Type: EFI
Manifold Type: Low Rise
Product Type: Manifold
Rear Height: 5.40 inch
RPM Power Band: Idle-6000
Warranty: Limited 90 Day

Notes:

Utilizes late model alternator and A/C bracket mounting provisions. Has vacuum taps off manifold runners. Extra installation hardware included. Not intended as O.E. replacement for 1987 & later fuel injected trucks.

This product is for Racing Competition only and is not legal for use in highway or street vehicles or other non-racing competition off-road vehicles. Purchasing this product requires you to sign our Vehicle Compliance Waiver HERE

Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Vehicle Make/Model	Year	Trims
Chevrolet Blazer	1987-1994	Silverado
Chevrolet Blazer	1987	Custom Deluxe
Chevrolet Blazer	1988-1991	Scottsdale
Chevrolet Blazer	1992-1993	Cheyenne
Chevrolet Blazer	1994	Silverado Sport
Chevrolet Blazer	1994	Base
Chevrolet C1500	1988-1995	Silverado
Chevrolet C1500	1988-1992	Scottsdale
Chevrolet C1500	1988-1995	Cheyenne
Chevrolet C1500	1989-1991, 1994-1995	Base
Chevrolet C1500	1990-1995	WT
Chevrolet C1500	1990-1993	454 SS
Chevrolet C1500 Suburban	1992-1994	Silverado
Chevrolet C1500 Suburban	1992-1995	Base
Chevrolet C1500 Suburban	1995	LT
Chevrolet C1500 Suburban	1995	LS
Chevrolet C2500	1988-1995	Silverado
Chevrolet C2500	1988-1995	Cheyenne
Chevrolet C2500	1988-1992, 1994-1995	Base
Chevrolet C2500	1988-1992	Scottsdale
Chevrolet C2500	1993, 1995	400 SS
Chevrolet C2500	1993, 1995	Custom
Chevrolet C2500	1994-1995	WT
Chevrolet C2500	1995	60th Anniversary
Chevrolet C2500 Suburban	1992-1995	Base
Chevrolet C2500 Suburban	1992-1994	Silverado
Chevrolet C2500 Suburban	1995	LS
Chevrolet C2500 Suburban	1995	LT
Chevrolet C3500	1988-1995	Cheyenne
Chevrolet C3500	1988-1992	Scottsdale
Chevrolet C3500	1988-1995	Silverado
Chevrolet C3500	1994-1995	Base
Chevrolet Camaro	1987	LT
Chevrolet Camaro	1987-1990	Iroc-Z
Chevrolet Camaro	1987, 1991-1992	Z28
Chevrolet Camaro	1987	Sport
Chevrolet Camaro	1988	Base
Chevrolet Camaro	1989-1992	RS
Chevrolet Camaro	1992	RS Heritage Edition
Chevrolet Camaro	1992	Z28 Heritage Edition
Chevrolet Caprice	1989-1992	Base
Chevrolet Caprice	1989-1990	Classic Brougham
Chevrolet Caprice	1989-1990	Classic LS Brougham
Chevrolet Caprice	1989-1993	Classic
Chevrolet Caprice	1991-1993	Classic LTZ
Chevrolet Caprice	1993	Classic LS
Chevrolet Corvette	1987-1991	Base
Chevrolet Corvette	1988	35th Anniversary Edition
Chevrolet Corvette	1990-1991	ZR-1
Chevrolet G10	1987-1988	Sportvan
Chevrolet G10	1987-1988	Beauville
Chevrolet G10	1987	Bonaventure
Chevrolet G10	1987-1988	Chevy Van
Chevrolet G20	1987-1995	Sportvan
Chevrolet G20	1987-1995	Chevy Van
Chevrolet G20	1987-1995	Beauville
Chevrolet G20	1995	Base
Chevrolet G30	1987-1995	Hi-Cube
Chevrolet G30	1987-1995	Chevy Van
Chevrolet G30	1987-1995	Beauville
Chevrolet G30	1987-1995	Sportvan
Chevrolet K1500	1988-1992	Scottsdale
Chevrolet K1500	1988-1995	Cheyenne
Chevrolet K1500	1988-1995	Silverado
Chevrolet K1500	1990-1995	WT
Chevrolet K1500	1991	Sport
Chevrolet K1500	1994-1995	Base
Chevrolet K1500 Suburban	1992-1995	Base
Chevrolet K1500 Suburban	1992-1994	Silverado
Chevrolet K1500 Suburban	1995	LS
Chevrolet K1500 Suburban	1995	LT
Chevrolet K2500	1988-1995	Silverado
Chevrolet K2500	1988-1995	Cheyenne
Chevrolet K2500	1988-1992	Scottsdale
Chevrolet K2500	1994-1995	WT
Chevrolet K2500	1994-1995	Base
Chevrolet K2500 Suburban	1992-1995	Base
Chevrolet K2500 Suburban	1992-1994	Silverado
Chevrolet K2500 Suburban	1995	LT
Chevrolet K2500 Suburban	1995	LS
Chevrolet K3500	1988-1992	Scottsdale
Chevrolet K3500	1988-1995	Cheyenne
Chevrolet K3500	1988-1995	Silverado
Chevrolet K3500	1994-1995	Base
Chevrolet P20	1987-1989	Step-Van
Chevrolet P20	1987-1989	Base
Chevrolet P30	1987-1995	Base
Chevrolet P30	1987-1990	Step-Van
Chevrolet R10	1987	Silverado
Chevrolet R10	1987	Custom Deluxe
Chevrolet R10	1987	Scottsdale
Chevrolet R10 Suburban	1987-1988	Scottsdale
Chevrolet R10 Suburban	1987-1988	Silverado
Chevrolet R10 Suburban	1987	Custom Deluxe
Chevrolet R1500 Suburban	1989-1991	Scottsdale
Chevrolet R1500 Suburban	1989-1991	Silverado
Chevrolet R20 Suburban	1987	Custom Deluxe
Chevrolet R20 Suburban	1987-1988	Scottsdale
Chevrolet R20 Suburban	1987-1988	Silverado
Chevrolet R2500	1989	Silverado
Chevrolet R2500	1989	Scottsdale
Chevrolet R2500	1989	Cheyenne
Chevrolet R2500 Suburban	1989-1991	Silverado
Chevrolet R2500 Suburban	1989-1991	Scottsdale
Chevrolet R30	1987-1988	Silverado
Chevrolet R30	1987-1988	Scottsdale
Chevrolet R30	1987-1988	Custom Deluxe
Chevrolet R30	1988	Cheyenne
Chevrolet R3500	1989-1990	Scottsdale
Chevrolet R3500	1989-1991	Cheyenne
Chevrolet R3500	1989-1991	Silverado
Chevrolet S10 Blazer	1987-1990, 1992	Sport
Chevrolet S10 Blazer	1987-1994	Base
Chevrolet S10 Blazer	1987-1988, 1990-1994	Tahoe
Chevrolet S10 Blazer	1987-1989	High Country
Chevrolet S10 Blazer	1991-1994	Tahoe LT
Chevrolet S10 Blazer	1991-1994	Nevada
Chevrolet S10 Blazer	1994	LT
Chevrolet Suburban	1987-1994	Base
Chevrolet Suburban 1500	1995	Custom
Chevrolet Suburban 1500	1995	Cheyenne
Chevrolet Tahoe	1995	LS
Chevrolet Tahoe	1995	LT
Chevrolet Tahoe	1995	Base
Chevrolet V10	1987	Scottsdale
Chevrolet V10	1987	Silverado
Chevrolet V10	1987	Custom Deluxe
Chevrolet V10 Suburban	1987-1988	Scottsdale
Chevrolet V10 Suburban	1987-1988	Silverado
Chevrolet V10 Suburban	1987	Custom Deluxe
Chevrolet V1500 Suburban	1989-1991	Scottsdale
Chevrolet V1500 Suburban	1989-1991	Silverado
Chevrolet V20	1987	Silverado
Chevrolet V20	1987	Custom Deluxe
Chevrolet V20	1987	Scottsdale
Chevrolet V20 Suburban	1987-1988	Silverado
Chevrolet V20 Suburban	1987	Custom Deluxe
Chevrolet V20 Suburban	1987-1988	Scottsdale
Chevrolet V2500 Suburban	1989-1991	Silverado
Chevrolet V2500 Suburban	1989-1991	Scottsdale
Chevrolet V3500	1989-1991	Cheyenne
Chevrolet V3500	1989-1991	Silverado
Chevrolet V3500	1989-1990	Scottsdale
GMC C1500	1988-1995	Sierra SLE
GMC C1500	1988-1993	Sierra
GMC C1500	1988-1993	Sierra SLX
GMC C1500	1994-1995	Sierra Special
GMC C1500	1994-1995	Sierra SLT
GMC C1500	1994-1995	Sierra SL
GMC C1500 Suburban	1992-1995	Base
GMC C1500 Suburban	1992-1995	SLE
GMC C1500 Suburban	1995	SLT
GMC C2500	1988-1995	Sierra SLE
GMC C2500	1988-1993	Sierra
GMC C2500	1988-1993	Sierra SLX
GMC C2500	1994-1995	Sierra SL
GMC C2500	1994-1995	Sierra SLT
GMC C2500 Suburban	1992-1995	Base
GMC C2500 Suburban	1992-1995	SLE
GMC C2500 Suburban	1995	SLT
GMC C3500	1988-1993	Sierra
GMC C3500	1988-1995	Sierra SLE
GMC C3500	1988-1993	Sierra SLX
GMC C3500	1994-1995	Sierra SLT
GMC C3500	1994-1995	Sierra SL
GMC G1500	1987-1995	Rally
GMC G1500	1987-1995	Vandura
GMC G1500	1987-1995	Rally STX
GMC G2500	1987-1995	Vandura
GMC G2500	1987-1995	Rally
GMC G2500	1987-1995	Rally STX
GMC G3500	1987-1995	Rally Camper Special
GMC G3500	1987-1995	Magnavan
GMC G3500	1987-1988	Rally Custom
GMC G3500	1987-1995	Vandura Special
GMC G3500	1987-1995	Vandura
GMC G3500	1987-1995	Rally STX
GMC G3500	1987-1995	Rally
GMC Jimmy	1987-1990	Sierra Classic
GMC Jimmy	1987-1991	Base
GMC K1500	1988-1993	Sierra
GMC K1500	1988-1993	Sierra SLX
GMC K1500	1988-1995	Sierra SLE
GMC K1500	1993	Sierra Sport
GMC K1500	1994-1995	Sierra SL
GMC K1500	1994-1995	Sierra Special
GMC K1500	1994-1995	Sierra SLT
GMC K1500	1995	Sierra SLS
GMC K1500 Suburban	1992-1995	Base
GMC K1500 Suburban	1992-1995	SLE
GMC K1500 Suburban	1995	SLT
GMC K2500	1988-1993	Sierra SLX
GMC K2500	1988-1993	Sierra
GMC K2500	1988-1995	Sierra SLE
GMC K2500	1994-1995	Sierra SL
GMC K2500	1994-1995	Sierra SLT
GMC K2500 Suburban	1992-1995	Base
GMC K2500 Suburban	1992-1995	SLE
GMC K2500 Suburban	1995	SLT
GMC K3500	1988-1993	Sierra
GMC K3500	1988-1993	Sierra SLX
GMC K3500	1988-1995	Sierra SLE
GMC K3500	1994-1995	Sierra SL
GMC K3500	1994-1995	Sierra SLT
GMC R1500	1987	Base
GMC R1500	1987	Sierra Classic
GMC R1500	1987	High Sierra
GMC R2500	1987-1988	Sierra Classic
GMC R2500	1987-1988	Base
GMC R2500	1987-1988	High Sierra
GMC R3500	1988	Base
GMC R3500	1988	Sierra Classic
GMC R3500	1988	High Sierra
GMC V1500	1987	Base
GMC V1500	1987	High Sierra
GMC V1500	1987	Sierra Classic
GMC V1500 Suburban	1988-1991	Base
GMC V1500 Suburban	1988-1989	Sierra Classic
GMC V1500 Suburban	1990	SLE
GMC V2500	1987	Sierra Classic
GMC V2500	1987	Base
GMC V2500	1987	High Sierra
GMC V2500 Suburban	1988-1989	Sierra Classic
GMC V2500 Suburban	1988-1991	Base
GMC V2500 Suburban	1990	SLE
GMC V3500	1987-1988	Base
GMC V3500	1987-1988	Sierra Classic
GMC V3500	1987-1988	High Sierra
GMC Yukon	1992-1995	SLE
GMC Yukon	1992-1995	Base
GMC Yukon	1992, 1994	Sport
GMC Yukon	1993	GT
GMC Yukon	1995	SLT

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Who is Holley EFI?

Holley EFI is a division of Holley that is one of the best aftermarket brands in the automotive industry. Holley EFI is a company known for producing high-performance parts specifically electronic fuel injection system parts. The company’s history can be traced back to the late 1800s when brothers George and Earl Holley learned how to make pattern casting that enabled them to build one-cylinder engines. Then in 1903, they provided Henry Ford with the carburetor and became the industry leader in fuel system technology. The rest is, as they say, history.

Fuel System Experts

For over a century, Holley EFI has always been at the forefront of designing parts for the fuel delivery system. From electronic fuel injections kits and fuel system accessories, Holley EFI has it all. Today, Holley EFI is considered one of the top aftermarket brands in the world.

Being Part Of History

Not everyone is aware that Holley provided fuel systems components for the military during WWII, and it is not for automobiles but planes and boats. Since then, the company has become a dominant force when it comes to fuel delivery system components and has been used by many champion racers and enthusiasts.

Choice Of Champions

Since the 1960s, Holley has powered every NASCAR sprint cup car and every winning NHRA Pro Stock Team even today. It is a testament to the kind of products the company produces.

Purchase Holley Products At Vivid Racing

If you are in the market for high-quality fuel delivery system components for your vehicle, then choose the best brand out there, and that is Holley EFI. Not every company can boast 100 years of experience.

To know more about Holley EFI, visit Vivid Racing and check out their list of products that fit your specific requirement.

90 Day Limited Warranty applies to B&M transmissions, launch control kits and all electrical components (switches, lights, solenoids).

Holley Performance Products warrants its Holley Street Avenger™ Carburetor to be free from defects in material and workmanship for the life of the product on parts and one year on repair labor. After a period of one year, Holley will charge standard rates for repair labor. For any Holley Street Avenger Carburetor used in any type racing or off-road use will only be covered by a one (1) year limited warranty on parts and labor. Warranty performance will be initiated by returning the alleged defective product to HOLLEY PERFORMANCE PRODUCTS with the original, dated purchase receipt. Purchaser is to call toll free the Holley Factory Service number at 1-866-464-6553 to receive details and shipping instructions.

For full warranty information please Click Here

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Holley EFI MANIFOLD, SBC LATE DP TBI EGR Upper

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