> I wish I could have gotten that case half when it was available, but it
> seems to be no more. I tried on the secondhand market as well. So, the
> pinasco is all I have. . .. requiring me to source or fab a special
If you just buy the pinasco case half it comes with a 13mm intake too. The complete dual carb bottom end from them comes with a 19mm intake.
> What other specs will your build have? What kind of vespa?
It's a bravo.
Stock cases + the reed block case half
64cc Polini racing kit
Rotary valve intake reamed out to 13mm, 13mm SHA
Reed valve intake w/ malossi 4 petal reed block, 19mm PHBG
Simonini Calibrata exhaust
9.49:1 CIF gear set
MLM water cooled head
Probably a 100mm rear driven pully (I have a pile of rear clutch parts to play with) with a polini spring (edited)