I have a set of Hedman headers and they're very well fabricated IMO. I originally bought them for my first Camaro which had a 350, but will be using them with my second '67 RS with a 327 and RHS heads.
I have a 327 with edelbrock e-street heads. It has 350 frame stands and mounts. My Hooker headers fit great. Hooker has changed their headers now, so I am unsure of the fit. I would recommend Dynatech Headers if on 350 stands or Summit Brand headers on the 327 frame stands.
Thorley Tri-Ys get my vote (Summit has them). I have had them on my last 2 first gens and they fit great. One was a 69 manual trans and the current is a 68 auto that formerly had a 327 and now has a 350 with flat top pistons. They do not hang down at all so no speed bump problems.
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