My 67 Coronet R/T with the stock 440/727 in it has 294 butt gears.. I feel it still revs too high on the freeway.. The car has 245/15" tires on it. ( I have no idea on tire height...

Have always wanted to install 355 with a GV overdrive...

In high school my everyday driver A12 car had 410 gears in it.. Utterly ridiculous gears to run on the street.. 42 years later I still remember what a PITA that car was with those gears... NEVER AGAIN in a car driven on the street....