Mr.5speed

I have a 01' GT. Just went w/ Headers, O/R H-pipe and gears. The car runs pretty decent for a 2V, but it seems to be running a little lean. Where to I start with the tuning as far as air/fuel mixture? Any help greatly appreciated.

lilcrate

either buy a a/f ratio gauge or get a dyno tune.

ct_white_stang

+1 If you don't know what your doing have a professional do it. You could seriously mess up your engine.