Originally Posted by dave Orcutt
. . . I do realize that the 235 is not a high RPM motor and 2000 rpm seem to be the sweet spot. I will confirm what the rear end gearing is . . .

I have a 51 with a 1956 engine and 4 on the floor but has a 3:55 rear end. . .
1956 car or truck 235 engine?
What is the feature/characteristics/benefits of the/a "sweet spot"?

1956 235 truck Engine Performance graph.