84 vette wont start unless. run a bridge from the battery to the distributor. Once star i can disconnect and it runs fine.
It sounds like I hear the fuel pump kick in when I make the bridge. Also it runs fine until I
shut it off and the i have to bridge it again.
Possible bad ignition switch
Bad switch or lose / broken wire or connection. Clean all the connections you can reach and if you can pull the ignition switch, make sure the connections are corrosion free. I'd have to agree with CameroCollector though.
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