Dear Butch;
It's been a long time since I ran a tach. on a 235 with 4:11 gears/old Chevy etc. But I recall 2000 RPM was 40 MPH.
So highway speed (55-60)would be 2500-3000 which won't hurt anything for 2 hr.
The OD transmisions from Chevrolet (circa 55+) will work fine in most cases and are cheap.
Are you sure you want to re-design the whole thing for an ocasional 2hr. cruise?
BTW: A 292" has more Hp & torque than the 283,327 & the early 350s.
Good luck, John M., #3370..
