Hey guys,
I can't figure out this tuning thing for the life of me. Can someone please have a look at my tune/log?
She's a 383/Hot Cam running off the 411 ('01 Express van base) with stock Vortec injection.
She starts up just fine and sits there idling (RPM does jump some though), but according to the wideband O2 sensor that I installed today, she's on the rich side of things. Also, I bumped up my idle speed, but I still get random backfiring (misfires?). The truck isn't driveable in the condition it's it, I can't rev it over about 1500 or so RPM. At that point, however much throttle I have in it, it bogs... I don't know if that's the correct term for what it does, it acts like it wants to stall and RPM falls.