I agree but I will probably shoot for a higher number down the road, so I want to be prepared if I do so. I talked to the shop thats doing the build and we are most likely going to go with re-worked stock heads with some agressive cams vs. the cosworth heads. I can't wait to get this started!!

 

I wouldn't bother with heads....these heads stock flow amazing.
I would just do (and am doing) cams.

My car has done almost 800rwhp (on a very conservative tune, and we didn't rev it out) on stock heads, Intense (I think it was intense might have been injected) did 900+rwhp on stock heads. If it ain't broke, don't fix it.

 

I agree. I called the shop again and told them we are gonna stay with the stock heads...they agreed that it was a pretty goog idea as well.