Pump is external and has a good ground.
Tried a different ground wire and different ground spot on the alternator and am getting the same readings. The guy at Powermaster said this alt was sufficient. In fact I'm spinning it a little higher bc I have a 7 1/2" crank pulley and a 2" alt pulley. Oh and this is a GM 3 wire.
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68 Charger, 440SC, EFI, 6-speed
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