Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - 400 small block idling problems
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Old 02-10-2006, 10:06 AM
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also i did make the mistake of totally rebuilding a carb to start this motor just cause the carb is fresh and i was confident with my carb tuning skills. the only reason i tore apart the 450 was because i thought it would be too small but it prob would have been fine for break in and tuning. the 600 is set back to just about stock and it is clean and nothing leaks. i will try the carb cleaner/wd 40 method and wil play with idle mixture screws. its definitely possible that its a carb base gasket leak. my friend says that he has 20-25 initial timing in his 357 with the same cam and he says the motor loves it. i thought this was high but i guess i could be wrong. any other suggestions?
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