Yes, I'm sure that somebody knows what brand of gas is sold at Maxton -- just not me. I think I remember it being Sunoco -- but that might hve been a year or two ago. There were a number of "flavors" available, so you might be able to get a C16-similar fuel. We only ran one meet -- and we used some C16 that we had with us (ran in fuel class), so I'm not sure. I do remember some chat around the pits that they'd attempt to bring more fuel choices if enough racers requested it.
I'm going to "suggest" this idea -- but I'm ready to have others shoot it down. Consider bringing your own gas in a brand-new, factory-sealed container (i.e. C16, Nutec Special 4, etc) and present it to the race directyor to see if he'll approve the fuel for use in a gas class (that would be only if there is no acceptable substitute available for sale at the track). If there is -- I'd forecast you'd be told "No" -- support the vendor that comes to the track to supply event gas. If there is no substitute there -- and if what you've brought will pass inspection for whatever paramters required for "gas" -- then maybe it'll be okay.
Ask them first -- I'm just bringing up a few points for discussion.
About ten inches of snow greeted Nancy and me when we left the house this morning, and it's still coming down like a bandit -- I think I'll plow when I get home -- oughta be enough snow to bother with plowing by then.