screw hemi @75% od

will a bae hemi c screw run at 75%0d
what will the boost be (im thinking 35-38psi)
if someone has a known good tune up (compression /fuel sytem) let me know $$
what do you think 2400lbs @75% or
2500 @98%
if i knew how much hp difference from 98% to75% i could figure more out
what do you think would be a faster et combination
this is what i have to change to for a series im going to run with
we need to run low 3.70's
the 128% od pdra is out east and over for me ( no more traveling that far)
thanks

ive been 3.69/3,70 @ 2560 @ 115%od multiple times so 98% -60 lbs seems easier
521 ci tall deck 4.150x4.467 noonan superman heads 10.6:1 now