Quote Originally Posted by shine View Post
grounds are your friend . i think without doubt that grounding problems cause the lions share of problems . thats why i started doing overkill on grounds . a quality buzz bar inside for grounding all your dash components is a plus also .
Ditto what shine says - I use a busbar with a direct #10 to negative post on the battery. Solves a lot of issues. When reassembling my '63 Nova I also added ground(s) at all four corners for the lighting/turn signal circuits. Make sure metal is clean and bright and use star washers. Certainly worth the extra effort and kills a lot of the gremlins associated with electrical issues.