That is normal for the charging to go to discharge with the headlights on at idle. A lot depends on the idle speed & size of the gen. pulley.
Put a volt meter across the bat or bat term of the regulator. It should run up to about 14 volts when you rev up the engine.


They say money can't buy happiness. It can buy old Chevy trucks though. Same thing.
1972 Chevy c10 Cheyenne Super
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