[nas t eh]

Saw the other thread and voted,

I paid extra to have Butler supply, port and prep my heads. While I had years ago, hand ported my old iron heads, swirl polished my own valves and assembled my own heads off HO racing’s handbook. I much prefer the piece of mind from having someone with experience assemble this stuff. I just wish they would have recommended better rocker arms. But I don’t think it was well known then, that PRW roller rockers were sub standard, For all those that bought them, I hope we don’t find out that Speedmaster heads are below par somehow.