I have a 70 SS 396, and now that it is driving on a regular basis I have noticed that there is a nice layer of black crap on the inside of the exaust pipes. But it does not smoke, It is a brand new quadrajet, with a new distributor and new choke kit, does it just need to be leaned out? Also I can drive it all day, but the next day when I go to start it, she take a few times to get started, almost like there is no gas in the carb, but once it runs for a few seconds I can start it right back up and it fires right off. any help is appreciated. Mat ACES #2424
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