Thanks Don, those are two very interesting ways to go. I myself am wanting a high compresion engine just because I love the throttle response they give. I have good size valves in the injector heads I have but I am not sure what size the chamber is. I am going to find out some how and biuld accordingly. I have already started taking them down and the porting and polishing will begin tomorrow or monday. I am interested in putting screw in studs in them but not sure of the cast. If I'm going to use roller rockers I had better I think.
Is the XE250 Comp Cam a hyd. lifter cam or a roller cam? I am wanting a roller cam for longer life and quicker rpm gain unless I am way in left field. Please feel free guys to jump in and tell me I'm an Idiot at any time!
I'm looking for the 400 hp range but have no idea yet what that is going to take.

What is the average HP of a 383 stroker motor?