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I have a crate 350 engine 290 hp I was wondering if it is possible that a faulty mec. fuel pump could draw some oil into the gas and into the carb ? I have notice a kinda oily film on the carb and toward the inside of it also burning not leaking oil 1 qt every 3000.
If you think that the residue is oil, check your PCV system. There is a hose from the valve cover to your air cleaner. The vapor from the engine is sucked into the air cleaner and thru the carb to burn the oily vapor. If you have a stock (Chevy) air cleaner, there is a small, coarse filter inside the air cleaner that allows the oil to condense from the vapor. The PVC system is most likely the source of the oily film.
Hi 77chevy,
i came accross this article today and may be of interest to you.
http://www.hastingsmfg.com/Service%2...il_use_350.htm
Seemed similiar to your problems anyway.Hope Helps,
Lerch.:whacked: