You realize he wouldn't be allowed to bring his composite stick with him in this hypothetical time machine, right?
I know it's hard to believe, but there were some decent players back then who could actually shoot the puck better than ECHL level players. So I'm pretty sure quite a few of those guys could also have shattered those records if they had access to the same equipment today's players have. For example, you don't think an all-time elite sniper like Bossy couldn't have wracked up even more goals if he had today's stick to use?