Ratios are a bit wide, but I do know a guy that wouldn't have it any other way. HIs was a 73 -74 Cuda, 340 3spd manual. I did have a 318, 3 spd manual Duster once. (Gettin misty eyed allready damn it.)
I noticed 1st gear had to be reved up a tad more than normal.
IMO, it was fine.
The levers would get jammed up once in a while.