I'm running aluminum Stealth heads if that makes a difference. Sorry, should have mentioned that.
makes a big difference you will be fine!
When I put aluminum heads (that and the intake was the only change) on mine was 11.5 to 1 and gave a dynamic compression of 9.68 and i went from 102/103 octane (had to mix 60% 110 with 40% 93) right down to 93 and it was perfect. Bigger cams allow more static compression but you will be fine!
Last year I ran 11.9 to 1 with a bigger cam came to 9.8 to 1 dynamic and still ran 93
