12-23-2002, 06:07 AM
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CC Member
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Join Date: Mar 2001
Cobra Make, Engine: ERA 427SC w/428 & Richmond 5-speed Car 611.
Posts: 525
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Not Ranked
Carb Size
How do you determine the most efficient carb size for an engine?
for example:
Currently have a 428 FE with Edelbrok alumn. heads at 10.6:1 compression. No porting or crazy valve sizes.
This motor has a Stock - Holley HP4150 - 750cfm carb.
The engine seems to run rich as evident by the black soot in the side pipes. Is the carb restricting the proper amount of air flow in the mixture or are the jets to rich?
What is the best way to determine proper mixture/jets on an engine that is installed in the vehicle?
The engine builder adjusted the carb while on the dyno, now that the engine is being choked by the restrictive - small air filter that fits under the hood scoop I think it is too rich.
Thanks for any help
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...."they say I'm crazy, but it takes all of my time."
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