[FireSale]

Depends on compression ratio. There are two. Static, which is just the volume of the cylinder and chamber and dynamic, which takes into consideration the valve events while the motor is running. Static never changes and dynamic runs all over the place with different cams based on when the intake valve closes. Pump gas has a lot of junk in it, especially ethanol. You'd probably be burning cash above Sonoco Standard 110 leaded.


Edit: I have two home tracks. Pacific Raceways has Sonoco on pump. Bremerton will be selling Renegade 110 and 112 by the barrel this year. It's located at a municipal airport and some guys hit up on AVgas. Not recommended...