It's done!!! Today was the day my mustang finally started!! And it sounded like complete poop... was hard to start, would finally get going then backfire pop and stall. My heart dropped thinking I messed up the timing, but we realized I may have stuffed the spark plug wires in the wrong place when I redid the timing on the old heads and found out it had a bent valve. So after looking up the firing order and getting that situated my mustang finally started and purred like a kitten. Held rpms perfect at 1000 and dropped to a steady 700 after it was warmed up.
Only have a few minor problems. Pws line from pump to hydroboost is leaking pretty well. Fuel pressure regulator vacuum nipple is worn out and leaking. And lastly I may have bent the backing plates into the rotors with I lowered the car down a few times. After a few burn outs and doughnuts I didn't even care about the minor stuff. It just felt amazing, I completely missed exhaust note of the car, I missed that old school clunky shifter feel of the t45 trans.
Some time in the near future I'm gonna get a tuner for this mustang, get it dyno tuned with before and after results and see what mad power this pi swapped gained, actually I just want it tuned because of the compression bump. It's not meant to be a fast car just a fun one. My first mustang will no longer rot away on the side of my house. Next time I'll be starting project fix my convertible 2007 mustang gt, I can't help but feel like all my mustang constantly need work.