is 11.2:1 compression too much for 91 Octane

Ok, keep on keeping on then fools. I have spent the last 20 years taking out the junk 268 comp on 110 LSA and using ANYTHING close with less LSA and they are easier to tune, have LESS cranking pressure.LOL.. so you've sofened up all those combinations. Good for you...lol.

Do some study and see what big HP engines are now using for LSA's (hint hint I've used them as tight as 98 and I know for FACT some have gone to 95).
The best builders I know and have talked to and learned from do what's required on a specific build to reach a specific goal. They don't fixate on one narrow window of choices and limit themselves and they certainly don't "hate Comp Cams".

And most of the people I know STILL use comp junk but the order the SAME lobe without the comp junk catalog standard 110 LSA.
(meant as sarchastic as possible)So they run "Chevy lobes" ??!! lol.