Fuse box upgrade 1965 Valiant V200

Understand that that is an ambitious project. I would consider it worthwhile, the biggest benefit probably, forcing you to go through your whole wiring harness and looking at terminals and fixing things.
Get the full wiring diagram for your car, and Trace out and understand each circuit as you go.
An ohmmeter should be considered the bare minimum for this portion. In a volt meter for once you start applying power.
Make sure you are proficient at soldering and heat shrink.
Allied electronics, Amazon, and somebody else, I can’t think of the name right now, for sources
Understand that a car fuse box is not like a house fuse box, there is not one single feed that comes in and feeds everything. Some circuits share a common source and other circuits share a different source, and some circuits are isolated on their own through the fuse box.
It took me a lot (A LOT) longer than I figured, and my project is still ongoing so I haven’t tested everything completely yet.
Label everything to keep your sanity. I used a Dymo Rhino LabelMaker with three-quarter inch wide tape.

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