Ignition box retard with RPM

wonder what a stock box reads as well as a straight points distributor. One wonders if the TO-3 transistor in an ECU is rated to handle the higher speed switching of the other models (blue,red, chrome,gold)?


I'll do a stock box soon.

Points do not retard with RPM. Neither does a Unilite. Well, it lost a degree at 10,000 but even with a pretty big coil it won't fire the plugs anywhere near that high up.