4 guage?? I used that for my alternator wire, you should go with a 1/0 guage cable for the POS side. Thats what I used, good insurance. If you ground the battery to the quad shock mounting bolt, you should be fine. Make sure all of your conections are clean and solid.
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-1993 Mustang, 900rwhp 03-04 cobra based 4v swap, full Griggs setup, project underway
-1994 Ranger w/ 427cid windsor (daily beater)
check it out!
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