Not Charging after Madd bypass.

I recently installed a new Intellitronix digital a-body cluster in my 72 Demon. At the same time I did the Madd ammeter bypass. Before I did this the car was charging perfectly. It now is not charging. I have 27 volts coming from the alternator at idle. I have traced the wires a half dozen times and I come up with the wires being correct every time. I tried another voltage regulator and nothing changes. Has anybody else that has done the Madd bypass had this problem?

Jack