Rare or not?

My car is a factory 340, 4-speed, 3.91 Sure-Grip car. Top Banana Yellow, black vinyl top, black bumble bee stripe, black scoops, buckets, hood pins.

I have the #'s matching engine and trans, but the car currently has a 440, 727, 4.10 Dana 60. I like to see stock restored cars, but I don't want one for myself.