Naw, it's a NOS stock tach which matches the original. And yeah, I usually shifted mine after the redline too with the Yoshi kit in it. The Yoshi cam and S & W springs made that work
It's that one missed 1 to 2 power shift past redline when still stock that ruined it back in '76.
OK, so it's a '75 tach, just a darker green with identical redline.