no start- elecrtical short some where in dash ?

22dog22 said

no I did not connect the black ammeter wire to ground I took out the amp meter and have a voltage gauge in place of it. also had no problem like this for 2 years before I installed the gauges. the funny thing you would think one of the fuses in the fuse block would blow and not the main one for the whole car since a lot are lower amps. !

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You still have not explained very well "what you have done." If you indeed have 20 in the main supply/ charging line somewhere, that is about 1/3 of what it should be. The original system supported "about" a 50 A alternator without modifications. The 65A option did some mods "dealer" or factory that essentially bypassed the bulkhead at least partially