What I did was hook the distributor output to the MSD input (can't remember wire colors at the moment; if you need details i can go look). The MSD takes care of everything. No more stock ignition module, no more computer. Since I don't have to worry about emissions in my county, I've been able to eliminate those sensors and simplify the vacume lines. I'm still chasing down a bug though. Haven't caught it yet. The distributor isn't properly advancing during acceleration. I made a post in the engine section, but never got a reply. Basically, I'm trying to turn the engine into a pre '78 setup.