G'day Rambo,
I think you might be a little optimistic regarding power output. My T'bird, with 'off-roads/unrestricted carb rubbers, is certainly better than with stock mufflers, but an increase of 21bhp....I don't think so. I believe the figures quoted by Triumph for the TBS were optimistic to say the least, & reckon that my T'bird probably improved by maybe 8 or 10 bhp max with pipes/rubbers. As for getting 102bhp, theoretically possible, but far cheaper to buy a 102bhp motor, than to try & get the stock T'bird motor to produce this. Then there's brakes, suspension etc that need upgrading to handle the extra power.
regards
Cuppa