Hey all i have a 79 351w shortblock its bored out .40 it has Trw Forged Pistons, Ford Motorsport Cam .520/. 538. i dont know what kind of heads i should get for it i know trick flows and afr are the **** but they are really pricey. i hope for 13s or 12. and what intake should i got for the Victor, Air gap, or rpm. theirs a set of heads on ebay for $600 http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=7980673271&category=33617 what do you guys think about those?