Does anybody here know how much horsepower the FST 500 for the Zuki z400 makes?

 

no. but the ct makes like 50 hp its a 453cc

 

Good question...personally I would go with Yoshi's 450 kit, (since that's what Gust runs) or Thumper racing's 470 kit. I've seen Mickey's response's to threads on this site and others, and I'd put my motor in the hands of someone else....JMO