What is the standard on the most compression

Is this going to be a street car? Driven in Georgia? During the summer? When it's hot and humid as all HADES? If so, keep it to no more than 9.5:1. Sure you can cheat the numbers and make it run with a higher static compression ratio, but that'll have to be the same as a controlled environment with perfect temperatures and humidity. With little to no load. Give it a 95 plus degree Georgia day with 70% and above humidity in stop and go traffic under a load and yeah, I wanna be there to see how happy your 12:1 is on pump premium.