wouldn't you want to use a two step rev limiter, so you'd actually not be modulating rpm?
if your line lock circuit could engage the brake switch when enabled you could use ecutek launch control.
would probably be ideal to be able to bump up and down the launch revs via + - buttons somewhere. not sure if that's possible with ecutek. so you could adapt to different traction situations
I have read of people putting the solenoid onto the rear break lines and then closes the valves when the brake is not pressed.
Causing the break pedal to only actuate the front brakes.
Also read of someone putting in pressure gauge in the dash for brake pressure. so they can see what brake pressure they are locking at. assuming you want to lock it at less than full pressure.
related:
https://www.corvetteforum.com/forums...eo-inside.html
https://youtu.be/Ct7Qel3nNUU?t=436