I perfer the TFS. But qustion for the AFR guys...
The afr heads are indeed good heads, but from my understanding theres not much you can do to those heads later right???

No more porting and stuff???
Now if I am wrong please let me know because I hate to be mis informed.
Now you take a set of TFS heads and you can have those heads ported tremendously for future mods. So in an essence they grow with you.
MY 2 cents.