PX Longstroke/Mal 166/T5 Carb/ Pinasco pipe

Any jetting tips for this set up ? The pipe is very much like a Polini in the way it works . . . . [:dance1:]

I have a similar set up except it is fully ported with the crank modified. Recommended is a 125 main but increase 3-5 points in cold weather. I am running a 130 main and it seems ok

what sort of performance do you get with this vespaboy166 as i’m interested in doing something simialer