Whats the best aluminum cylindar heads?

Alright guys I am running a 500" stroker with stock heads and a very mild streetable cam and I am running 12.15's in a 71 Dart. I am looking to upgrade to a mechanical roller cam and a set of ported aluminum heads, so what the best or the best bang for the buck out there. Id like to shave a second off my ET's. Everything on my car is built to take a ten second beating just need to get some more get up and go. So whats the best combo for roller cam and aluminum heads, Ive been looking at the Stealth heads and a comp cam.