1972 Chevy Nova white smoke from exhaust

HOODEDSTRANGER

MEMBER
1972 CHEVROLET NOVA

Engine Performance problem
1972 Chevy Nova V8 Two Wheel Drive Automatic

Hi, I'm an 18 year old kid with an old muscle-car and I'm doing what I can to take care of it. A little while ago my friends told me that whenever I rev the engine and open up the carbeurater (4 barrel) smoke comes from my exhaust. I've looked up the question a little and it can range from my car just running rich to me having to replace my pistons. The color of the smoke is normally white/gray and after I stop and walk around my car, a distinct fuel smell comes from it. My car's been known to run rich before, I just wanted to clear up my concerns. Thanks in advance for your help.

1 Reply

RASMATAZ

MECHANIC
75,992 POSTS

Sounds like its running rich-check the carb. Choke plate when engine is fully warmed up should be wide open-if not adjust it, also the carb could be internally leaking, clogged airfilter or weak ignition system.