I concur with the manifold suggestion. I had a '69 Chevelle and ran both Hooker and Doug Thorley - both had clearance issues. The Hookers were better, but access to the bolts were a real pain in the neck. If I were going to do it now, I'd start with Stage Eight locking bolts in stainless. I know they're expensive, but they have a hex head as well as an Allen inset that allows better access. Once they're tight, put the locks in place and forget about the hassle of re-tightening them. Stainless of course doesn't rust either.

Just my 2 cents...
Glenn