I just finished turboing my civic with a homemade kit. After wiring in an SAFC-2, spark plugs that we forgot to gap went crappy and I replaced them. The car still will not rev past 3500 rpms. For some reason it backfires everytime. I was told it may be my distributer... does this make any sense? Anyone that can help it is MUCH appreciated. On another note the o2 sensor isn't wired in and as far as fuel goes I have a 190LPH fuel pump and an FMU the car is currently untuned as I need to figure this out before tuning.