I need to know if I need to get them with the round holes or the square holes. I have stock heads with edelbrock TES headers, 305 TBI engine

Look at a set of replacement gaskets for your car and use those to compair to the copper. I just put on Hooker headers and I am thinking about going with copper. Let us know how it works.

TTT someone's got to know

Square holes I believe, at least that's what came with my headers.

Thanks, im too lazy to go to the part store like 88bravo suggested