help! chargeing problem since mad bypass!!

Do yourself a favor if you don't, get a factory service manual. The 73 manual "should be close" You can download it here:

http://www.forabodiesonly.com/mopar/showthread.php?p=1970088617

Charging problems fall into just a few major "sections"

1.... Actual defective alternator, or regulator

2....Wiring troubles in the field circuit

3....Wiring troubles in the output line circuit

4....Mostly over charging (over voltage) due to voltage drop (poor connections)

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So do some quick checks. Here's a simplified diagram, from MyMopar

http://www.mymopar.com/index.php?pid=31