I used to get 3800 rpm out of my 235 for short bursts of "speed". Like, 70 mph for passing (4.56 gears).
But not on the Rochester 1 barrel carb. I changed over to the Holley/Webber 2 bbl and got about another 500 rpm out of it then.

52 GMC 3/4 ton pickup
68 Big Block Vette
68 455 Firebird