Quote Originally Posted by nfswift
All my requirements for heads would be good breathing through till redline and supporting up to 400HP, pretty much, which the Vortec irons are quoted to do precisely.

If there are alum heads out there for a similar price then I might consider those too, but Vortec irons seem pretty dirt cheap. Aren't Dart heads pretty pricey? I'll go for used heads if I need to, I'd just make sure they aren't over-warped and have the entire block decked for a fresh start.

I'm looking for snappy throttle response and torque-happy hard acceleration in the finished final product. Preferably without having it flat out die in the upper RPMs, I know I can't have everything but...

Not sure about the cam selection still...
The Dart Iron Eagle S/S 165 cc port head can be picked up for around $700 to $750 complete.