Holley 0-80508S Classic 750 cfm 4-bbl 4160 Gasoline Carburetor Features:

• Performance upgrade for stock to mildly modified engines
• Universal calibration for out-of-the-box performance
• Factory preset electric choke
• Vacuum secondaries compensate for vehicle weight, gearing & transmissions
• Dual-feed fuel inlets for constant high-volume fuel delivery
• Compatible with GM, Chrysler, and Ford A/T kick-down linkage
• Power valve blow-out protection

FAQ

How much fuel pressure does a Holley 750 carburetor need?

• A Holley 750 carburetor like the Holley 0-80508S functions optimally with around 5-7 psi of fuel pressure.
• Ensure consistent fuel flow without overwhelming the carburetor.

How do I identify my Holley 4 barrel carburetor?

• Check the list number and stampings for identification. List numbers like Holley 80508-1 or 0-80508S indicate model specifics.
• Additionally, examine physical characteristics and throttle plate configurations.

What is the advantage of a double pumper carburetor?

• A double pumper carburetor, like the Holley 80508-1, provides quicker throttle response due to dedicated accelerator pumps.
• Offers increased fuel delivery for performance applications, especially during rapid acceleration.

How do you tell if a Holley carburetor is a double pumper?

• A Holley double pumper, such as the Holley 0-80508S, has dual accelerator pumps visible from the primary venturis.
• Distinct secondary metering blocks also indicate a double pumper configuration.

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

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