Hi Jimmy, I got this from Bo Thorselius in Sweden, seems the guy that came talking to us might have been Jesper Schoug.
Sam,
Stefan Reisten was not at Valdosta. Jesper Schoug who bought Stefan's Honda Nitro CB750 (970cc) was there. It might have been him talking to you. He raced that bike successfully and then sold it to a guy in Norway.
Jan Andersson in Sweden built another CB750 SOHC. Billet cases, cylinder block and head(!). 1200 cc. Run in the 7.30's. Unless somebody in Australia or South Africa built and raced one with a screw blower, this would be the quickest CB750 SOHC based single motor bike ever run.
I found some more info on Jesper that stated he did in fact race the Stefan Reisten bike at Santa Pod in England.
Sam.