Whats the highest C/R i can achieve w/93 octane?

i want the highest c/r with 93 oct. gas before i start running into probs and detonation and all that, trying get you alls opinions before my non vtec b20 becomes a b20 vtec beast

i will be running a b20 block with a 95 gsr head milled 15 thousandths, thanks again