Thanks Mike, I've snooped around on there a few times, some very good information. Fairly well dialed in with the shop that will be doing the electronics, and (maybe) the Supercharger folks, too.... They've done a bunch of them and have both engine and chassis dyno results to show what various combinations will yield.... The only thing I don't like about the new LS engines is that Chevy came up a bit short on engineering and are still running pushrods in them......