Dear Pete,
I don't intend to "boost" it, or alter the engine, so as to "gain" more power. As you said, there are plenty of other motorbikes for doing that job.
As a matter of fact, I just enjoy seeing, riding, hearing this machine. And I want it to be just as it was, when it was leaving the factory doors, back in the '70s..
I will ckeck the steel pistons in the calipers.
Thank you!
Dimitris