When I built my 235 I used the same approach I learned in high school. Bored 60 over. Milled 848 head, intake & exhaust runners polished. One piece mechanical lifters (heavy but don't come apart). Patrick's 3/4 race cam. Stock intake and exhaust manifolds, with the Rochester one bbl. carburetor.
A good ear can detect the cam. The engine will turn 4,500+ rpm, and my old farm truck has seen 95 mph (stopwatch timed & paced, speedo doesn't go past 90) with 4.10 gears.
A classmate had a 48 two door. Had a 261 with the same head mods. and the full race cam for the 235. Carb was rejetted with drills, exhaust split with a welder. He could keep up with the city kids and their new V8s.
