Any suggestions? My S-Trimed 331 with 50lb injectors is running good, but how or what should I look for to cure this problem? I am running rich at Idle and a little on the lean side, but not much at WOT? Any help? Thanks!!

[Vortex]

are you using a Fuel Management Unit? If so, take it off, if not, get one. If you take it off get it dyno tuned or have an a/f monitor guage and adjustable fuel press. regulator.

[GTRaptor]

A dyno tuned chip or EECTuner/Tweecer are your best alternatives.

The later require a learning curve though.