Jim Grant's Tech Tips
72 Ford,
Flame Thrower
Q: I have a 72 351 C Ford V-8. It has headers and a 750 Holley
carb. The car has been sitting for 5 years. My problem is that if the
RPMs are gradually raised it's OK but open the throttle quickly and fire
comes out of the carburetor. After running at idle for a while it will
start popping out of the exhaust like it's loading up. Raising the RPMs
up for a bit seems to clear it up and the vacuum gauge is steady at 20
but any quick wide open throttle from idle again will pop through the
carb. Its loading up with way too much fuel. I can't figure it out. .Charlie
A: Your
problem is likely with the carburetor. Letting a Holley carb go dry for
so long causes the gaskets inside to shrink and fail. Have the carb cleaned
and rebuilt. That should turn your flame thrower into a tire burner instead.
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