225 still running hot

No, It is an aftermarket high dollar ignition system. It uses a Chinese mad slant six electronic (copy cat) distributer with no vacuum advance (just centrifical) with a HEI type 4 pin module, and a round oil filled coil (not even an "E" coil). In my opinion a high dollar piece of snake oil.
https://performancedistributors.com/product/dodge-slant-6-tri-power-distributor-2/