Just double checked my timing and its correct. As far as firing order its 13726548 and 1 being at around 11:45 on the dizzy and spinning ccw that's how I have my wires plugged. Unless this engine isn't really a h.o. I have them wrong which I'm pretty sure it is. 87s did have the h.o right?lol.....I'm kind of thinking its fuel starvation that's causing this. I will check my fuel pressure over the weekend to rule out the pump or the little hose from the pump to the sending unit being pinched. One other question, are the tbirds 5.0 fuel pumps same as the mustangs? Reason I asked is because that's what I have on