met a guy (62 years old retired guy who still raced both of them) w/some raced out quadsports

he said he bored them 80 over

Is this possible or a little far fetched

It just seemed lik a lot.

 

You can bore one out .080 over. I wouldn't however. I would rather have the cylinder resleaved to a larger bore, and have the cases machined for it to fit. Oh, and I 'd look for a real light wieght piston. .080 over doesn't give you 80CC however.