Slant 6 engines

I'm doing a lot better than 120 hp with my slant.
0.100" off the head, 30 over, wolverine blueracer com(unknown specs to me), clifford shorty headers Yed to a single 2.5" pipe to a turbo muffler then 2 1/4" pipe out to the back, clifford 4bbl intake, 465cfm holley.
I last ran the 1/4 in 16.35@83 but that was before the 4bbl and shift improver kit.