I have a ESR race gas dome which they said is normally 190-210 psi. I've been running straight sunoco 110 in it with 40:1 ams oil. I just did a compression check and I was getting about 180 - 185 psi after kicking it over about 10 times with water temp up to about 130 from just idling in the garage. I'm close to sea level if that matters. Should I switch to a 50/50 mix of race/pump gas? What is the compression range for 50/50 mix of 91 and 110?