Idle issue/back fire
Thread Starter
Racer
Joined: Oct 2012
Posts: 280
Likes: 82
From: Indiana
Idle issue/back fire
I'm looking for some knowledge as to the idle quality of an LT1 after performance parts and before a tune. I just finished installing AFR 195 heads, had my intake port matched, BBK 52mm throttle and 1.7 roller rocker arms installed over the OEM cam. It has not been tuned yet, but it is experiencing a back fire and idles like it has a choppy cam in it. Is this normal until it can be tuned or am I missing something?
Thread Starter
Racer
Joined: Oct 2012
Posts: 280
Likes: 82
From: Indiana
No, the opti stayed dry, and I know a vacuum leak can cause a rough idle but I've never seen a vacuum leak cause popping in the exhaust. I appreciate the help. Guess I'll wait for a tune to see what happens.
