I recently put a new crate 350 with a new HEI distributor with vacuum advance in my 82 MC. Then I deleted the computer.

Not sure it's related, but there is a full 12 volts going to the gauge cluster and has killed two oil pressure sending units and the fuel sending unit plus the amp gauge and temp gauge are erratic.

Any clues on why/what/how this is happening and what to do to correct it?

Thanks in advance!