Nope, I don't drive my car at 5000 feet.
1000ft and this is worth mentioning AV gas was 20 hp higher than 110 sonoco on recent Dyno testing and 30 HP less from the day before, ALSO....it is 1/2 the cost of sonoco 110.
ALSO almost all race fuels are based off of AV gas.
If the op only requires 93 then 100LL is plenty.
