5.2 5.9 magnum EFI plug and play harnesses

There is a dual pickup distributor that uses a hall effect sensor that might do the trick, but I didn't look very far into into it since it was $400 or more. That might be able to replace the crank pickup, but as far as I know it has never been tried.

I will go back to my notes and see if I can find it again.

I was working on a pickup off a plate bolted to the cam, under the cover, but I don't think I am going to go any farther than that.

You could also relocate the factory pickup (or similar) to the front of the motor. Cut some holes in the barrel of the pulley to simulate the windows in the flexplate and mount the sensor to read them. That's probably the direction I will go in someday.