the both intakes that i have are for vortec heads.
but ( so you know ) the fast burn heads have prevision's for both style intakes. i found that out when i got them.
but the Vic Jr i have is for vortec heads. i got it because i was going to have my original steel heads ported out and i thought i would get away with it. now Worth the fast burn heasd they have bigger valves and 3 angle valve job so they flow better so i wa hoping i could use it.