1993 Mustang 5.0 crank but no start cars been running a little rough at idle so i saw my plug wires melted from my headers, i changed them and protected them this time i started it up and it was running the same way a little rough so i messed with the timing and it kept backfiring, and all the sudden got a real rough idle (sounded like it had a big cam) i shut it off rechecked everything and my 4 and 8 plugs were wrong i switch them and tried starting her now she cranks but no start i changed the ign. module i have spark and fuel, cant figure it out |