I basically run the 440 set up you are laying out except no stroker. I run CNC ported Stealths, EZ-EFI w/ mulitport, 11:1 comp, making over 575hp. Also run GV's for some added gear selection. We autocross, road course, etc, no problem.

Here is what most don't realize when you strictly looking engine upgrades. Now you have to stop, this leads to big brake costs. Now things get hot, this leads to coolers all over the place. Then there is safety, this leads to seats, harness bars/ or cages.

That's really the reason we stuck with the 440 and the not the real cost of about $15k to go to a GENIII.