Compression ratio question

With aluminum heads, and tight Q;
I'm speculating
That you might be able to drop the timing back to 30/32" at 3400 and run 87E10, and never know the difference until You hit top gear at WOT.

That's what I did; with a 367, .034Q, and 10.9 Scr with a 230* cam in at 106.....and it still hit 93 in the 1/8th @3467 pounds.She's been swilling that skunk-pee since 1999.

Your results may vary