INST Fuse blowing

67Dart273 said
Is this with the cluster unconnected? If not just about has to be "right in" the cluster

What's your best guess on "right in" the cluster? Sitting here brainstorming at work on break..............
All sockets and bulbs new.
Amp meter bypassed.
5v factory voltage reg replaced with a 7805.
Fuel level and temp gauge seem to work.

As removed:

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