67 Barracuda Heavy Electric Load

All good advice. You should definitely add relays for your lights, electric fans and other added high current drawing items. All your power goes through a most likely undersized stock wire that goes thru your amp meter, light switch to fuse box. This may not be your problem right now but it could very well be in the future. Lots of posts on headlight relays and more out there along with other wiring upgrades especially if your using a higher amp alternator. JMO