Ultra Double Pumper carburetors upgrade the classic Double Pumper with all-aluminum construction and billet metering blocks and base plate, saving about 5 lbs. versus a comparable zinc carburetor. This 750 CFM model features an enhanced fuel curve, 4-corner idle for precise idle control, dual accelerator pumps, mechanical secondaries, and a factory preset electric choke, finished off with red anodized billet metering blocks and throttle body.
Specifications:
- CFM: 750
- Flange Type: Square/4150
- Billet Color: Red
- Body Finish: Polished/Shiny
- Choke Type: Electric
- Fuel Inlet: Dual
- Material: Aluminum
- Primary Main Jet: 72
- Primary Power Valve: 6.5
- Secondary Main Jet: 80
- Throttle Bore: 1.688"
- Vacuum Ports: 1 Timed Spark, 2 Full, 1 PCV
- Country of Origin: USA
- Warranty: Manufacturer's Limited 90 Day Warranty
- Part Number: 0-76750RD
Square bore flange with a 5-3/16" x 5-5/8" bolt pattern, replacing Holley, Edelbrock, Carter AFB, and Autolite-style carburetors; a spreadbore-style intake manifold requires an adapter for installation.
FAQ
What bolt pattern does this carburetor use?
It has a square bore flange with a 5-3/16" x 5-5/8" bolt pattern, compatible with Holley, Edelbrock, Carter AFB, and Autolite-style carburetors.
Do I need an adapter for a spreadbore intake?
Yes, a spreadbore-to-square-bore adapter is required if your intake manifold uses a spreadbore pattern.
What vehicles is this carburetor intended for?
It's intended for lightweight vehicles with a manual transmission, or automatics with a high stall speed and low gearing.
What construction gives it a weight advantage?
Ultra Double Pumpers use billet aluminum metering blocks and a billet base plate, saving about 5 lbs. versus a comparable zinc carburetor.

