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| Holley #80528 750HP |
This carburetor is probably the most “friendly” carburetor available for the small block application. Very capable of sufficiently feeding an engine up to 650 horsepower, this carburetor still retains the capability of good low-end response due to proper air speed.
VDL Fuel Systems has done extensive dyno testing to establish the proper air/fuel circuitry producing a flat fuel curve that results in maximum torque and horsepower while maintaining good horsepower numbers in the high RPM range. Most racing carburetors can be jetted to produce big torque numbers or big top end horsepower numbers, but there is always a trade off between the two. VDL Fuel Systems carburetors have a balanced network of metering systems that produce a superior performance curve from start to finish. |
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Track testing has given VDL Fuel Systems an extensive database for producing optimum throttle response and drivability in specific applications. This is a custom tailored carburetor, not just an “out of the box” generic, and you will notice the difference!
Assembly is done to tolerances unobtainable in high volume production. Boosters are installed to within .001’’ on height, twist, and pitch. The base plate is matched to the main body. All gaskets are properly matched to the main body to prevent overhang. And Finally, the throttle plates are adjusted for optimum position angle on the flow bench. VDL Fuel Systems produces a custom built; fully optimized carburetor built to your specifications and engine application – not just another ‘’out of the box’’ carburetor |
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| Application |
Description |
| Custom built to customer specs |
Venturis blueprinted to maximum sizing
Air/fuel circuitry calibrated
Idle circuit calibrated
Accelerator pump circuit tailored to application
Welded throttle shaft
Base plate matched to main body
Booster calibrated, sized, and precision installed
All parts vibratory polished for enhanced airflow
Stainless button head throttle plate screws |
| Alcohol |
Air/fuel circuitry calibrated for alcohol
Idle circuit calibrated for alcohol
Accelerator pump circuit calibrated for alcohol
Boosters calibrated, sized, and precision installed
Titanium needle and seat Holley ¼-32 jets w/ auxiliary jet holes or 5/16 –32 Holley alcohol jets
Machined and polished main body (as rules allow)
Stainless throttle plates and button head screws
Base plate matched to main body
All parts vibratory for enhanced airflow
All parts coated or dichromated |
OPTIONAL – Billet Base Plate |
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