MSD launch control box?

Hey guys I think what i’m looking for is called a launch control box but i’m not sure. It limits the RPMS you can reach when you launch. Is that what it’s called? How useful are these? also does the S300 incorporate anything like this or is it just the timing retard? Also what is a good MSD box to run for a 550 HP setup when i’m running a hondata s300. Is a HVC too much or would it be a good idea?

stock ignition is best. less crap to go wrong, stock ignition has been proven on many 500+hp motors. you are thinking of a 2-step rev limiter, the s300 has it built in.

anyone else have a comment on this? what i was thinking of was the think that you can hit the gas when you goto launch and it will flutter at the RPM you set it at. Is that the 2 step rev limiter?

it will hold the rpms there until u release the button

u can drop or fleather it
u hAVE TO DO IT
thats not a 2steps job
a 2steps job is just to hold the luanch rpm steady at the rpm u want it to