That's a beautiful bike.. I grew up working on those and many of the bikes from that era. The scariest bike I ever got to ride was a hopped up GT 750 "water buffalo". It was bored, heads shaved, really large flat-slide carbs, and chrome expansion chamber exhausts. It didn' t stop.. it didn' t handle.. but my God, when you whacked that throttle open it just about put you in the Rollie Free riding position! That bike was gone, and you better have a hold of the handlebars.. lol