Ok understand Vanny is best for my low buck build because they built to run good stock, witch one is the best 14-16hp or 18-20?? also how are the built Vannies running compared to intex-tecumseth-kawasakis.
Low-buck vanny build????? maybe rebuild.
As for the "BUILT" engines....You will get one guy telling you that the vanny is the best, then the next will say the Tech. is better, and the Kawi guys will state theirs is the one to beat.....Sorta like the Chevy, Ford and Dodge guys.
Get your racer to be safe and handle first. You can have all the power in the world and if you can't transfer that power to the track and be safe....it was just a waste of money.
Just remember that STOCK engines are just that. Made to make power to about 3600 rpm.