i have a r.b holly carb set up with a 1st gen dizzy, im trying to hook up the msn in it i have 2 6al msd boxes and 2 blaster 2 coils i wired it in, it starts and run but somehting rong when i step on the gas it dose nothing but hesitates and back fires, do the ignitors have to be on or wat dose any one have pic or have had the same problem

 

What year of dizzy? If it's electronic, make sure you do not have the reluctors connected backwards. Yes, you need the ignitors so if you aren't running them reinstall and trigger the boxes via their output instead of directly on the reluctors...