I installed OBX longtubes and Magnaflow catback, 8# lower pulley , egr deleted, valont cold air intake, 2400 maf ,SCTx3 tuner and got some mail order tunes also installed tr6 1step colder plugs gaped at .032 starts n idles fine but when step on gas slowly accelerate in park it sounds ok till about 2500rpm and when u just try to rev it quick seems like it wants to stall out then idles fine. Also on another note the overdrive button flashes it never has b4
Help please!