Quote: For example, if 165 psi is the limit for 91 pump gas at sea level, then that is the target that should be hit @ 6000'.
yes if 165 is the limit for 91 inside the cyl(s) it doesn't make any difference if the cyl(s) are located in New Mexico or death valley but since the air outside the cyls is "thinner" at NM you need more CR to squeeze this thin air inside the cyl(s) to get that 165
live every 24 hour block of time like it's your last day on earth
