Welcome to the forum Mr.Boston...
I wrote a decent response to your post but it timed out...
Hang tight, and use the =search for more info.
Your restrictions are in the air box at the "snorkel", and the drive boss in the variator.
The first requires a larger main jet, and tweaking of the idle mix screw, and the second requires a new drive boss.
Both will cost less than 15 bucks, and will gain you approx. 5 mph top speed.
Luckily your question has never been asked before so I think the smart fellas here will have fun researching what you need.