Have been going back and forth with a mid on a camaro I just got. Finally took it to the dealer today, they think it is a couple injectors since the misfire moved with the injectors. The dealer wanted $750 to replace the two injector, but thought it would be good to replace all 6-$2,000! That would be more than I paid for the car and seemed a little out there. Are the ACdelco really needed, or is there a good brand out there for a stock 3.8? I seen some Accel performance whole set of 6 from advanced auto for $260. I don’t need performance, just want something reliable.