I did a search and see where a small number of people bought headers with the "ball and socket"???? thing instead of a regular flange. Is this better? I would think so but I only see a small number of people that have this so I'm wondering if it's that great. I'm looking for some ceramic coated headers for my '90 K5 w/ 383 SBC. I only want to do this once so I don't mind spending a little more for quality headers. Any recommendations, part numbers, venders etc. is greatly appreciated. Plan on ordering Monday. Thanks.