race gas or pump non ethanol premium, which to use

Well I tend to disagree with you on the lowest octane. In my HiPo 340 I am running 93 octane and when mixing 110 Sunoco racing fuel,1 gallon to 15 gallons of 93 my car comes alive.
same results here 11.4 compression adding 2 gallons sunoco 110 to the tank wakes the car up