Sounds like you are you trying to find an excuse to switch to a V8? There is really no reason to. The 235 with the OD is a great set-up. And you have seen it will run at highway speeds all day long.

"It's just a phase. He'll grow out of it." Mama, 1964

1956 Chevy 1/2-ton 3100
1953 Chevy 6100 "The Yard dog"
1954 GMC Suburban Now with a new proud owner.