Originally Posted by chogunna91

Wait WHAT!!?? is a valve stem ?? My vacuum is good now. Its just the stupid smoke -__- and my motor is not tuned just running on enthalpys base tune and it sounds crappy like it has a slight misfire every few seconds but a small one, and then when i press on the gas slowly on idle all the way to 5k rpm and release it starts misfiring and backfire popping sounds out of my exhaust. Plus with my exhaust leaks my motor sounds stupid.. Its not smoking at all anymore it only did it in the morning after the rain. Like I revved up to 4k rpm and released and smoke came out, then went away and never came back