Re: 67-72 Electric speedo
I think oil pressure is more dependant on how good of shape the engin is in, but mine do seem to run a bit higher than the older engines. My gauge goes way over to the right on start up and stays to the right most of the time, so if you want the needle in the middle an 80# gauge would probably get you there.
The black box on that cluster is a relay I was using for another purpose, you wont need it.
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