ok did not know where to ask this, so I put it in this section.

- have a fd3s ems stinger 2 rotor ecu with a
4 coil igniter+ 4x msd ss blaster works just fine at 14 psi boost but I'm going for 20 psi soon and was thinking on a cdi for the extra help.

- the options and what i read is the M&W the best for drag racers but my car is mostly street driven, I do push it hard on the street.
- ems 4 channel cdi ??
-or the dynatek arc2 cdi just for leading should be fine? And if in the future want to upgrade can just update with a extra dynatek arc2

Any info appreciated

 

i would use m&w cdi there been proven over an over again