Good question.

I made no changes as it was a quick install. The headers are tri-y. With the small camshaft in the larger engine the size is probably OK. New headers are on the to do list. I also think a 4-1 collector will make more power. I have a neighbor who runs comp and builds headers. He says he has never seen a tri-Y run faster down the drag strip. They look really trick and fit real nice though.

Leon