Chuck, I think Eric is correct. Justin won the GN in Clay City with a Wankel , can't remember the year but I think it was 2010. The next year, 2011, Robbie won the GN with a Charley Stoffa Wankel but I don't remember the track. The Wankel people immediately sold about a cazillion Wankels that next year because everyone thought that it would make them a winner. I guess they didn't understand that Justin and Robbie were driving the snot out of them. He also won the GN in 2012 and was not driving the Wankel and I don't remember if it was Chris Seay's BRC or not, I think it was..... I don't think that Chris ever won a GN with the GM.
At the Clay City GN, Eric was the flagman in turn #2 and Brian Able was flagging #4. They had a problem start because Justin would accelerate after the green flag and the other kart could not get up to speed as quickly as Justin. They finally restarted the race after the third try and Justin dominated. They also had a fight in the pits that got some people tossed from the UAS for a year.