how much initial timing mild 360 magnum

1wild&crazyguy said
Does you MSD drop the timing 20* while it's idling?

why would it need to retard while idling>?
do you hit the button during idling periods or when you dump it at the track?

No the 20 degrees cut out is for starting only.... there are seperate modules to retard the timimg when you engage the nitrous

http://www.atlanticspeed.com/productcart/pc/viewPrd.asp?idproduct=2934&idcategory=125