So for those who called me out and said I was doing ricer math by saying 383 on a mustang is 430 on a dynojet. Here's my run for today. 100 degree ambient temperature and 30% Humidity.
And this is SAE. I'll see if I can get the numbers for STD...
EDIT: Just called the shop again, made 445/335 STD
Made more power than advertised by Stillen w/ 35F hotter air temps.