If it is over pressurized, look at the vent for fuel spillage into the venturi. If you don’t see it, I don’t think you have an overpressure problem.
Where in the RPM range is it fat?
Fat at idle is very common if you have a lot of cam, its hard to keep it running without the extra fuel or timing advance.
Plug readings for the most part are only valuable for full load/RPM readings when it comes to carbureted performance engines. You may have to live with a richer the normal condition to keep the thing idled.
More information about your engine might help. I know you mentioned its mostly stock, but do you have any kind of lumpy cam in it?
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Originally Posted by boatpuller
can't help on your problem.but,on my edelbrock "tech" line expierence.i wasn't to impressed with there knowledge.he was a expert at skirting around the question,like a politician.but no expert on anything about carbs.
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Tech guys from these big companies are very low tech. I think they just read things off a trouble shooting guide, most don’t really have a clue or have no hands on experience to help you.
I do however applaud there employers for giving employment to the mentally and emotionally impaired......hey Paris may need work when she gets out........she could work the Edelbrock tech line.