Ken,
In reference to your desire for separate intake & exhaust cams for timing "play", you could go back to the "dawn of time" to the "T-head" engines like those used by Pierce-Arrow and Locomobile in their "senior" cars- these were huge engines: sixes with around 500 ci displacement, and valves en bloc, intakes on one side, exhausts on the other- an early "cross flow"!
What I'd kind of like to see is a "hemi" head for a Chevy, something like the Jeep overhead-cam Tornado engine from the sixties; a buddy had one in a '64 Jeep p.u..
Ran great, had lots of torque, great revs, but leaked an unholy amount of oil around the "front plate" that also functioned as front engine mount.
The Chevrolet Bros. started making after-market overhead cam heads for Model "T" engines (Frontenac), after they parted ways with Billy Durant; perhaps we can develop an over head cam for the 235?
Guess I'd better lay off smokin' corn silk!
:p
[ 01-03-2002: Message edited by: Frank54 ]