The Holley HP 650 main body kit upgrades 1-1/16 bore double pumper carburetors to high performance without a complete carb swap! Very versatile main body for racing on a budget and street use, too. HP 650 main bodies are a mainstay in circle track racing; the straight leg boosters are highly useful for high vacuum 604 motors and street motors that do not have drag race calibrations. Includes vent tubes, air correctors, squirters and screws, base gasket and mounting screws. 134-301SA. Manufactured in Bowling Green, Kentucky.

FEATURES:

• For 650, 700, 750, 800, and 830 1-11/16 bore carburetors.
• Calibrated for a hot street/strip motor for outstanding throttle response, drivability, and maximum performance.
• Aluminum contoured design reduces turbulence and smooths air entry into the venturi.
• Adjustable 10-32 air correctors for dialing in the high speed and idle fuel curves. 
• Eliminates choke tower of standard Holley Double Pumper®

SPECS:

Venturi: 1.25 (1-1/4)
Throttle Bore: 1.69 (1-11/16)
Booster Style: Straight
Booster Size: .140
Idle Air Bleed: .068
Main Air Bleed: .041

$207. Email to order or inquire. Trade in your old main body for credit!

View the Holley Old Model vs Q-Series Carb Sizing guide for historical and current carb sizing.