I have a 89 foxbody mustang gt. I bought it, knowing it needed work, like puting it back together. After a few days of work I got it running, but it is missing on four of its cylinders. 3,4,5, and 7. I have checked everything. Plugs, wires, cap, rotor, I redroped the distributor,fuel injectors are getting power, and I have even tried the old 5.0 firing order for giggles. Please help, I love the car and can't give up on it.