Burning rich??

[98pontiacfirehawk]

I have a 96 T/A with a 355cid, AFR 195cc heads ,LT4 intake , LT4 cam kit , 30 pound injectors, 52mm tb, fuel pumps are two 255 lph .the reason for the second pump is for the spray. fuel pressure is 48 or 49 psi without vac and 42 or 43psi with vac. Factory reg also, LT headers, computer programming was done with the mods except for the other 255lph pump that came with the spray. the problem is I can drive the car for about 40 to 60 miles and the bumper will sut up black. No vac leaks at all. All sensor are good all. the injectors read about 133 pulse at idle warm with scan tool. I was thinking about lowering the fuel pressure down to about 41 psi without vac what do you guys think .







Thanks

[WS6ICK]

Get a tune.