Hey guys, I have a brocks ct and three of their maps, maxton, street and track. In the "basic map description" for the track map it says for use with oxygenated fuels mr9 mr11 etc and air cleaner removed. however in the attachment heading it says pump track, and Brock sent a note saying if your gonna use the track map you can use pump fuel. Does that negate the race fuel thing or does it mean I can use both? Also do you think I'm better off with the track map mr12 and no filter? or the maxton mr12/ filter in/ map for some 1/4 mile passes?