i wanna order a head for my truck. i dont know if theres a stock head that would help me get power or if i would have to go with some aftermarket ported heads?
my setup is: stock 6.0-218/220 cam-sts at 12psi-t56 tranny.

 

which 6L? The stock 317's breathe very well. You can look at a set of L92 heads IIRC that breathe as well as some good aftermarket heads.

 

You can use stock 317's or talk to Richard at WCCH (sponsor, link to the right>>>) and get a set of StageII 317's

 

243 heads i had them before on 6.0 they are good

 

not on a boosted application, NA sure, but not boosted.