Believe it or not there's not much more to be had. The Carbide has a DC based CDI so be sure to get the right one. Talk to Tom at
www.SYCPowersports.com (or just click the link at the top of the page) and he can direct you where to get it from. We have done a few tests with the CDI's with no rev limiter and we gained 2 mph consistently on the top end on a long stretch. Track attack test netted no gains because there wasn't enough gained to be measured in time trials.