I,ve got a 89 ford 150 It came with a 302 stock with fuel injection.I have remove the motor and installed a 302 5.0 motor out of a 88 mustang gt .The only thing i changed was i used my original intake and fuel injection The truck will start up great but between 500-1500rpm the motor spits and sputters after 1500 it runs great tried changing computers with the mustang still no good it also idols fine