Hi, i've got a friend who as a 1200 from 67 powered with a 2110cc type one with nitrous.. but he never realy used it on the road.... I think that more dangerous to keep control on road with nitrous on.. better have good brakes to stop the car at the second red light 50 meters behind the first one...
aswell nitrous is rather a small "cancer" for engines... engine with nitrous dont last too long..
good luck.
david