Which gasket is best? I'm not sure, but I used a FelPro upper set when I bebuilt mine. I have had no problems. I haven't heard of many problems, if any, using Felpro gaskets in non racing applications. I've used FelPro gaskets on alot of automotive repairs and never had a problem.
But I would guess that if you're using tube style headers, that you'll experience either/or broken headers bolts or flange welds long before the gasket gives up. I'm sure someone else will chime in if they disagree.
Last edited by JimW; 05/16/10 12:20 AM. Reason: My grammar sucks