[Formulajones]

Originally Posted by 78w72

& SD wont port the repro intakes anymore due to bad port alignment or core shift issues.

I think it depends on how far you want to take it. Some of these aftermarket heads have the roof pretty high where even iron intakes get pretty sketchy. Some of the repop aluminum pieces are worse than others.

My repop RAIV actually has a decent amount of meat at the top. Probably enough to get by without welding for a mild port job and raising the roof a pinch.

I had to clean up the original HO piece on the 455 I built a couple years ago, and those were on a set of Dan Barton ported 7F6 heads that flowed 285 cfm. The port match was off to begin with but wasn't bad when I was done.