Thanks for the comments. I checked a few sites for the repro tachs and they all seem to go to 8000 RPM vs. the pictures I have seen in brochures that are 6000 RPM and the one in my dash is also 6000 RPM. What gives?
The repro one I have goes to 8000 rpm. I would imagine the reason they all do is because in general aftermarket tachs go to 8000 and 6000 rpm movements are not available.
My 360 revs to 6500+ rpm with little effort even though as a rule I keep to 6000 max so it is nice to be able to read past 6000.