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Holley Double Pumper (R) carburetors are a perfect performance upgrade for hot street cars and race vehicles. Double Pumper carburetors are an American icon when it comes to performance carburetors. From their roots as the premier carburetor on many factory muscle cars to powering thousands of vehicles across the finish line, the Double Pumper is a great choice whether you are burning up the street or the quarter mile.
Features:
Tumble polished shiny finish for good looks
Chevrolet small block 2 x 4, 671 blower calibration
Manual (Cable driven, hand operated) choke for precise cold start control
Dual 50cc accelerator pumps for addition fuel under initial acceleration
Dual feed fuel inlets for constant high volume fuel delivery
Mechanical Secondaries for perfect off the line launches
2 corner idle allows you to precisely control your idle system
Intended for lightweight vehicles w/ manual trans or automatics with high stall & low gearing
Boost referenced power valve for proper enrichment under acceleration
Throttle lever cut off for clearance on a sideways application
100% wet-flow tested by Holley technicians to assure it arrives ready to run!
Manual Choke Mechanical Secondaries-4150
Made in the USA!
This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
Manufacturer
Holley products have been the undisputed leader in fuel systems for over 100 years. Holley carburetors power every NASCAR Sprint Cup team and every NHRA Pro–Stock champion. Holley's products include performance fuel pumps, fuel injection, intake manifolds, cylinder heads & engine dress–up products for street performance, race and marine applications. As a single solution, or partnered with products from other Holley companies, Hooker Headers, Flowtech Headers, NOS, Weiand, or Earl's, Holley products can give you the edge you need over the competition.
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