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Below is a collection of Jim Grant's Tech Tips sorted by Vehicle Make. These Tech Tips were answers to questions submitted to Jim by ALLDATAdiy.com users over the course of many years.
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  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. It’s 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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