Ok, it's reading 14.2 at the alternator and 13.9 at the battery in the trunk. I just bought another 4 gauge wire and ran it from the alt to the starter. The ground strap is a flat, metal 4 gauge with a clean ground to the frame. With the car idling at 800rpm and everything on, my laptop says 10.2 and my fuel pressure gauge is still fluctuating.
Should I get a regular 4 gauge round wire for the alt ground? Also, would it be better to run that red 4 gauge wire from the alternator straight to the battery in the trunk? Thanks again.
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68 Charger, 440SC, EFI, 6-speed
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