I recently installed a set of AFR 165 61cc heads along with a anderson b-31 cam. When I go to start up the car it idles really rough and bounces all over the place from 500 to 1100 rpm. If I rev the engine to 1500 for a little while or drive the car and then stop, the idle smooths out and everything is okay. Why would it do that?
Also, when I really get on the gas while driving and rev the engine past 5000 rpm and let off the throttle to shift, it lets a good amount of white/greyish smoke out the back of the car. I know it isn't coolant. I've had a coolant leak before and this smells totally different. My coolant level hasn't moved at all. It doesn't smell like oil either. It only does it when the car is under load, not if i rev it to 5k while it's in neutral. The engine does pull really hard, however, I do have a small exhaust leak at the header collectors. My timing is at 18* (no pinging) and my fp is a 39 psi without the vacuum attached.
Any help is appreciated.
-scott
Also, when I really get on the gas while driving and rev the engine past 5000 rpm and let off the throttle to shift, it lets a good amount of white/greyish smoke out the back of the car. I know it isn't coolant. I've had a coolant leak before and this smells totally different. My coolant level hasn't moved at all. It doesn't smell like oil either. It only does it when the car is under load, not if i rev it to 5k while it's in neutral. The engine does pull really hard, however, I do have a small exhaust leak at the header collectors. My timing is at 18* (no pinging) and my fp is a 39 psi without the vacuum attached.
Any help is appreciated.
-scott