Alternator question??
My recommendation would have been to put a $50 145 amp used truck alternator on it and a over drive pulley to get the alternator speed you need and also have higher amperage output.
Even billy bad *** alternators have a minimum speed they need to turn to output. Did you ask mechman about that?
If nothing else, turn up the idle speed to 900 or so, or ditch the under drive, or add an over drive to the alt, or all of it.







