I have a hallman mbc and to this date I havent had any issues... the reaction is alot faster on spool, my first through third gears are at 16psi, fourth at 18 and 5th and 6th at 20. And I'm running pig rich too after all these resets.

BTW, turbotrix tuned my car and the mbc was the way to go.





**I know Joe... I know... **