after this great thread i've changed my mind and decided to go with the hooker super comp headers. the under chassie stories i've heard about leaks,starters,and linkage problems i just desided to go with the hookers.
Mine don't leak. I have a 4 spd with mechanical linkage, and it works great. and a mini starter will fix any starter problems.
Make sure you are 100% sure you want to cut holes. It costs alot to patch them back up good down the rd. the extra suports needed can add up too. just my opinion
as far as leaks go, any headers will leak if you don;t have a think flange.