Accel Ignition ????

[Huck]

Recently picked up a Accel distributor---it is the small diamater type with external coil. It also has the module attached on the outside of the distributor.
Does anyone have the knowledge as to just how these little buggers are wired--(wiring diagram perhaps??). I would like to swap this out with the HEI in my 4x4 blazer. I also need the rotor for the accel---is it the same as a stock rotor?? I need to know what wires attch to which points on the module, what go to the coil and to which connection ie +,-. Thanks