Oh yeah, am I dreaming to want a tic-toc tach instead of my clock?
Well for 71 to 74 if you already have a clock dash you can switch it too a tach, but they did not make a tic-toch tach. Its one or the other unfortunately. At least you have a dash with the clock. They had a bother kind that had a combination oil and water gauge pod and those dashes do not readily take the optional tach or clock.
'71 EL5 Roadrunner - 383 Auto w/ AG