I have had a similar problem before. It was my carb studs came loose. Also check/replace the carb to intake gasket.
If you are sucking air thru the base it could cause an overheat condition. Also check all the carb body bolts make shure everything is tight, they come loose sometimes.(remove carb for this there are some undertneath).
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5.0, Holley heads, 1.7 Scorp Rockers, Stealth intake, Holley 600 carb, Holley Mech. Fuel pump, MSD 6Digital, MSD distributor, Hotchkis upper/lower rear control arms, FMS B Springs, 3:73 (8.8) rear.
Production # 9,377
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