Small block headers: worst to best fitting. List your experience.

They should all be race headers. Don’t let the word race scare you.

That’s the problem. You want to run junk **** and then ***** about it.

So the answer is YOU NEED A RACE HEADER or stop bitching about header fit.
American racing headers hands down fit the best but are not made for PS. You can install and remove with engine in the car, each tube is separate.