Most popular tach in the 70's and other stuff

Agreed, sun super tach.
Just one decal?
I (heart) my hooker headers was my favorite.
Cragar if you were running s/s wheels.
Accel if you were using the yellow wires or super stock coil.
Hurst was another popular one.
I could go on but there were too many.
I still have a good sized collection I saved all these years.