I did realize I misspelled gauge and have been searching on 'Guage' for 2 days. Turns out it still brings up a fair amount of stuff, I guess others are products of the public school system like me

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The full dash panel gauge swap is interesting as is the switchover idea. I think I really like the idea of a dedicated vac gauge anyway as long as I can find a place to mount it. Great ideas that folks have though. Alot of creativity from this community.