I have a 94 mustang GT with a 5.0 and alot of money into after market parts. Its a great car but its just been problem after problem scence i've fixed my lifters. the problem I have now is that the dang thing is misfiring. Ive changed the plugs, got new MSD wires and I new distributer is on the way. If that doesnt work what will? pleeeeeeas help me.