just want to know if there worth putting on and would i need 2 msd units? i have a few local rotary guys around but there into the 1/4 mile racing and i never see anything about useing MSD on here. from what i read on these units the MSD 6BTM is the one to use on a turbo motor but which rpm modules 3000, 6000, 7000, 8000 would be best to use with this unit.

 

would this realy be worth getting

 

No, you'd need THREE to handle the leadings and both trailings.
I dunno why you're worried about the timing retard, as the stock ECU does this automatically.


-Ted