Welcome to HS..
I will check w/ one of the guys onmy team as he has the same situation and I'll see if he know's what's up. Last time he had something along those lines he put it on a Dyno and tuned it as he also had a apexi controller, not sure if you have anything like that or not. e has gone threw 2 GSR motors and had both screaming til he had a B&M regulator blow....
I'll let you know....