I was wondering how EFI deals with launching with a clutch and a 2 step rev limiter. In my mind it would mess up the signals, that's why I'm asking.

The only thing it can really "mess up" is the closed loop operation. A system like Holley, when you use the Holley 2 step, it automatically goes open loop on the 2 step. If you are using a MSD, etc, you go into the closed loop limits table, and don't allow fuel to be added in just the area (WOT and RPM range) the two step is in.

Well I guess I won't have to over think all of this. I guess the smart guys have been thinking about all of this for a while now.:D