cam specs are .519 lift, 221@.50, 108 lsa and 104 centerline. advertised duration is 275. i am assuming i need a little more compression for that cam but not sure what my target dcr should be. i am at 1000 ft+/- above sea level but dont want to limit myself. i can rejet and recurve distributor as needed, while i may use an afr gauge to get a baseline, 14.7 isnt what i would shoot for. i am trying to determine max "safe" compression ratio, meaning i may need to fill up with 91 if 94 isnt available, it might get a little warm going up a mountain or a may end up at the beach (sea level). at this point, i can get the scr anywhere between 9 1/4 to 10 1/4. from my limited knowledge, 9 3/4 (7.98 dcr) "appears" safe. is it?