TNTDSM7777
10+ Year Contributor
- 89
- 1
- Apr 28, 2011
-
Missoula,
Montana
So just finished my rebuild and my idle is really rough. It starts every time and when I drive it runs decently. Boost builds very good as well. After running for a while it wants to backfire on me. I was just wondering if this is symptoms of bad timing or maybe a boost leak. Cam gears are lined up but my dad did the crank positioning, which I am skeptical about. New coils, plugs, wires, and cps.