building engine

[19904G63turbo]

I'm in the process of building a 6-bolt engine. As of right now i have it bored 40 over, weisco 8.3:1 pistons, eagle crank and rods, and 1mm over sized Ferrea valves. My goal is to get around 400 awhp without sacrificing a lot of torque and spool time. I was wondering what i should run on the rest of this build. what size cams, turbo, springs and retainers, ext

 

[TopGun8818]

272/262 HKS cams, gt30r turbo would be great for quicker spool time. You are gonna get many different opinions as far as the turbo. I would contact Forced Performance and talk to their sales/tech department - they are very helpful and can also recommend what's best for your setup.