Hi people
just to let you know that a GM HEI ignition module works nicely , right in place of the stock ECU.
I just finished a test conversion, the car started immediately, I didn't even have to correct the initial timing. I still need to test drive but as far, the engine idles and revs fine.
Like some Duraspark conversion we saw in the past, it's very easy to connect 4 wires from the module to the stock harness. for ease of test and sharing, I installed the setup inside a stock Bosch enclosure. so i can connect/disconnect at will.
for a clean installation, maybe I will put the device (module + heatsink )on the firewall in place of the stock ballast, with the correct coil allowing to get rid of the resistor of course.
I chose GM module for bulletproof, compact design.