I bought one of these. Has a limiter for the water box(line lock) one for the line (transbrake) and overall revlimiter. only uses one chip(rev limiter) the waterbox and launch use dials to set limit. It uses the tach lite
MSD 8735 Launch Control Module Selector
Jeg#121-8735
I didn't have a transbrake at the time so didn't use that feature. I did like that the burn out was basically the same everytime.
