I guess any 45-50 size engine will do the job , but if you're looking for the speed, it will not....
The West 50 may not be the cheapest engine, but it will give you the more HP's, more RPM's, and in the end, more speed than most cheaper engines.... Don't forget that the price includes a pipe-manifold and a tuned-pipe.. Most engines doesn't come with this as standard..
