[fresh355]

Mods: lt1 4bolt .30 over ,redid heads with valves valve springs and seals retainers 3" exhaust new water pump, opti, cc503 hr 12, currently running no intake.

Problems: running lean or rich, to much fuel being dumped, running rough but no loss in performance, sometimes doesn't shift in wot mainly when I get to 110 it just bounces off rev limiter. Can somebody help me diagnose this. Thanks in advance

 

[fresh355]

I dont think it was tuned got from a buddy of mine in the military..no way to really get in contact with him till he gets back but I read up on getting a tune I think ima go through madz28 but Im not sure if I should start with a mail order or actually go to f body central down the street and dyno it