I've been working on helping my cousin kit this Morini Pacer so it can blast! I've found very little info on here as far as what's involved so I figured I'd contribute some of my experience so far.
So when my cousin bought this bike The Shanks had already added the mk3 pipe and custom mounted a SHA on to it and it was going a SOLID 28 mph....
so we ordered the MORINI EUROCILINDRO 45MM REED VALVE KIT FOR M01/M02 from DOS Cycles
and the morini M0 M01 M1 super stuffy RACE crankshaft from Treats
For this kit the case needed to be bored out to fit the skirt and JB weld material was added to help seal it up after I matched the case.