Msd 8680 ever use one??

[dustoff440]

Anyone ever use this?? I want to have my cake and eat it too, I'll need to retard the timing before I engage the nitrous, and also for starting and want to be able to advance it while cruising for maximum gas mileage...

http://www.atlanticspeed.com/produc...dcategory=96&gclid=CObmh8SqzKgCFapl7AodxFPwsQ