FBO's black HEI ignition box
Had to change it out once because of a top end miss.
I keep an extra one in my small tool box in the trunk.
The 8 pin module and HEI8 coils use weatherpak rubber sealed connectors unlike the Ford units that have exposed blade style terminals.
These 8 pin modules also have an ignition retard function that allowed the computer to deal with detonation via the module by applying 5v to one of the terminals in the unused socket, though I have never personally used that feature.
They also still fire with lower voltages than the 4 pin module. (Like a low battery scenario)
There are quite a few guys on this site running these that bought the ready to install kits from me, and I have also built these into the OE Mopar ignition boxes.
I have been running an 8 pin GM module with the HEI8 coil off my OE style distributor for over 7 years.
Had to change it out once because of a top end miss.
I keep an extra one in my small tool box in the trunk.
The 8 pin module and HEI8 coils use weatherpak rubber sealed connectors unlike the Ford units that have exposed blade style terminals.
These 8 pin modules also have an ignition retard function that allowed the computer to deal with detonation via the module by applying 5v to one of the terminals in the unused socket, though I have never personally used that feature.
They also still fire with lower voltages than the 4 pin module. (Like a low battery scenario)
There are quite a few guys on this site running these that bought the ready to install kits from me, and I have also built these into the OE Mopar ignition boxes.