How can I install a single MSD6AL box to both coils on a distributor tipe engine. Ive seen it done and it works quite well but cant understand how they do it because I know that the 6AL box its single channel and the Rotary ignition works on split ignition timming..I tried wiring the two coils with the single box the engine starts and idles well but doesnt rev as it usually does Can some one help me on this? I only need the box for rev limiting is there something better than the MSD box?

 

First it CAN be done, hooking one box to control the Leading Plugs.

Second one box CANNOT be used for Rev Limiting, without a RPM Switch also.

Just the Search button for MSD and start reading, it have been answered before, just have to look.