re: Headlight draw. Correct for industry standard replacements.

1968
4002 nominal 37.5 and 50 Watts
4001 nominal 37.5 W

1970 up
4000 nominal 37.5 and 60 Watts
4001 nominal 37.5 Watts

Phillips Lamp Guide Replacement Sealed Beams Cross ref.
4000 ->H5006 nominal 35 Watt and 35 Watts
4001 -> H4001 -> H5001 nominal 50 Watt

AFIAK those are all nominal power draws at 12.8 Volts.
With lamps, increasing supply voltage will increase the current draw.