I covered his 1978 bracket hondamatic photo back in the middle of Sam's forum topic build. Impressive for his day. Not impressive for current Hondamatic racing. He wheelied off of the line running 12.3's. I can't do that today with a Hondamatic with a stock wheelbase. Be interesting to find out how he did make it wheelie like that. Sam's Hondamatic bike ran 12.3's with a smaller 836cc motor. The turbo Hondamatic would have loved a modified torque converter allowing higher rpm launches. It was geared for a big top end. There's a Texas hondamatic owner that I talked with about 3 years ago who was talking about putting a turbo on his 10 second Hondamatic. He never called back with updates.
Testing my memory, but I'm remembering 12's for his 400...(12.4's?) Motor was bigger with a small overbore, compression, aftermarket rods, cam, and a good port job if I'm remembering it right. I hope that someone else has a better memory of it. There was an article in some magazine on it back in the day.