Scooterotica

Somebody I know wants me to build his engine.
He has a T5 Pinasco barrel bored out for a Malossi piston.
Anybody have any experience with this set up?
What can he expect from the Pinasco barrel?

Can't speak for the conversion but back in the 80's the Pinasco would've been my barrel of choice with power more similar to the Polini than the Malossi, a fairly grunty kit considering the short stroke motor. Wasn't as outright fast as the Malossi or a MRB 170 but those were a lot of money.