351 needs some help
I recently purcased a 1989 F-150 that sat for two year, now I expected some problems but it's getting out of control, I have replaced the high preassure fuel pump, fuel filter, plugs, wires, dist cap, and Rotor Button, map sensor, and bought a code checker, and I still can't figure out whats going on. My truck will start than even if im ideling at high rpm is backfires into the airfilter and dies. than when I try to restart i skips sputters and backfires more but won't restart. I have sunk alot of money and parts into this and im getting frustrated any help would be great. I think oxygensensor but im not sure.