I had a 90s tomos LX with a hastily ported stock cylinder, sidebleed estoril, 15 sha, athena single petal reed block. iskra cdi and parmakit box. 27x22 gearing i believe??
gps'd it at 52mph on the levee banks at a sacramento ride years ago. that bike hauled ass.
i built the same exact setup for my crappy white a35 tomos but put a lot more effort into the porting...low and behold this one goes like 45mph lol. proof mopeds are dumb and contain high levels of magic