In your search for ignition systems take a look at FBO (
www.4secondsflat.com)
Made in the USA, good strong ignition with digital rev limiter, and the backing of a privately owned USA organization for any possible warrantee issue's.
IMO, one of the best quality and priced systems out there.
Call Don (the owner) and talk to him in person as he really knows his stuff and is real easy to talk to.