Hey guys, I've had my 1991 Firebird with the 305 TBI since feburary. It hasn't run much as its more or less of a project car.

I went to start it up yesterday and after a short while I noticed a white smoke coming from the passenger side valve cover. I did install some aftermarkets a while ago and I susspect they may be the problem. I am also thinking it could be the EGR valve. Upon further inspection I noticed most of my vacum lines are cracked and one is missing. I belive its the one on the far right side of the TBI going to the EGR Solenoid.

I really hope this is something simple instead of a warped head or bad piston ring. Hope you guys can give me some suggestions. Thanks.

 

Did you let it get up to operating temp? If No- Likely condensation burning off. If Yes- check your oil for a milkshake. Yes- You have coolant in the oil. No- Leakdown test time.