UPDATE: AFTER 14 MONTHS (MORE QUARANTINE (THE DRIVING IN MON)) THESE DISTRIBUTORS WERE CRACKED AND GOING OUT. I've since returned to the stock distributor after my horrible experience with these headers working. They fit, but to be honest I can't think of a more complex design to install. - Market Pads (INCLUDING CHEAP) weekends and something to write all those new swear words you come up with during the process! (and don't forget anti-seize if you come across an aluminum head)