[Excaliber]

I be a little worried about the compression, even with alloy heads 10.5 or 11 sounds like it's pushing the envelope. Man it sucks worrying about octane when your out for a drive. Now if you plan on getting some 'quench' in the combustion chamber that will help and you have a better chance of getting away with 11. Forged pistons, right? Will that cam profile work well within the range of your expected cruise rpm?

Iron heads on my FE, I went with quench AND still stayed at 9.8 to 1 c.r.