I never had any spiking problems with my old MBC (Joe P). I just used it to raise boost to exactly where I wanted it (6 psi). It should improve spool time even if you don't raise the boost. I would set the MBC for exactly what you want on the track. Then just unplug it and reconnect the wastgate lines if you want standard boost. If you unscrew the MBC all the way, it will take you forever to reset it for the track. It takes alot of tweaking to get the boost exactly where you want it.

Corbin

'95 ESI-T
HRC+FMIC+ETC...



Gimme fuel...Gimme fire...Gimme that which I desire