Passon 4 speeds

I've installed several of Jamie Passon 4 speeds. No fuss straight bolt in.Great people too.
We are soon starting a 64 Belvedere build and will be using his 4 speed. Yes I'm with you that the 5 speed really isn't nessary(for our build) as the owner is in south western Pa. We fell that you run out of road after the 2-3 shift because of the twisty/hilly roads.You have to let off to make that turn or slow to see over the hill.Then hit 4th and cruise....