So I'm trying to get further on my tomahawk build. Head guy gave me specs we want to find springs for. No luck so far. Cam is .704/.717? Lift. Solid roller.He wants 200# seat pressure and 700# open. I can find some PAC springs that are 250 seat and 659 open. This is what the tech guy at PAC recommend. What are you guys using? Part numbers would be good. Heads are track elimator that hopefully will flow around 380?? Thanks.