As Scott mentioned there are gear boxes with different ratios.
I used the one that had about 4.1 turns which I think is standard.
The other one that I am aware of has about 3.6 turns, it might be a little too quick for most uses.
Fred


1956 3100 Pickup/Red/350/3sp OD/PS/Disc Brakes
1957 Bel Air Sport Coupe/Red/355/TH350/PS/Disc Brakes
2017 Silverado LT Single Cab SB/Black/5.3/6 Speed Trans
1947 Willys CJ2A w/F-Head engine