MARK 2
This fuel is the first high
octane unleaded racing fuel designed to compete against and replace
leaded racing fuel. Mark 2 is the first 110 octane unleaded fuel
made in North America. Since its introduction, Pro Racing Fuels
Mark 2 has consistently out performed competitive Leaded fuels
on the dyno, or at the race track. When you want to add to your
winning performance, this is the fuel you need. Generally used
in competition engines up to 14-1 compression ratio.