Just picked up a barrell of 111 ( 107 motor octane) from AFD fuels 505.00$ out the door and that includes buying the drum. Next time it will be cheaper just to fill.
Someone on here mentioned something about adding Toluene to pump gas and a little bit of ATF to make your own race gas. Cant remember the ratio though. Do a search on race gas or octane booster and I'm sure you could find the thread...very interesting stuff.