I know about the holes that need to be drilled in a 235 head when using it on a 261 engine . When rebiulding a 235 & reusing a 235 head on it , would it help to drill the extra holes in the head & block like a 261 ? THANKS
RE: 235/261 Steam Holes ! YES ! a very good idea indeed , look over on The Stovebolt Page as someone there posted a diagram to make it easier . -Nate