Those early '80's Turbo bikes were very interesting, but complicated. They were all overshadowed whent the super 750's and liter bikes were introduced; i.e. the Yamaha FZ750 in 1985, and the FZR1000 in 1988. My '86 FZ750 topped out at better than 140, turned 11500 until the rev limited kicked in, and was "gawdahlmitey" from 8000 on up. The FZR1000 was more of the same.
It might be fun to get your turbo back in good running condition, but parts will be an issue. There's a British magazine dedicated to old bike restorations, and if it hasn't already featured an article on your bike, it will.
This may be it:
http://www.classicmotorcycle.co.uk
or this one:
http://www.classicmechanics.com/