Trans+ and backfiring??

DR. EVIL

THE DARKSIDE
Joined
May 27, 2001
My car is running quite well, with the exception of it backfiring once in a while. Usually if it ever happens, it's remotely soon after it just started and I might be accelerating slowly and when I hit it and then let off, KABOOM! it backfires.....
17psi, 2% lean WOT, MAF lean, 19 advanced timing, no change WOT timing

Any ideas?? I have the LT1 3" MAF with the screen out of it. and the extender chip, you can see the rest of my mods in my sig.
 
Top