318 build up

John Wayne, I forgot to mention the cam duration suggestion.

With 3.23 gears with a 235/60/15 tire I would look at no larger than a cam of 230*'s @ .050 with a manual trans for a dual purpose car. A bit less for an automatic trans. These durations work well for the street and light strip.

Knowing how much lift the heads can handle is the second part of the cam. Generally I like to use as much cam as the head can handle. If the head flows well only to .500 lift, then that is the max lift of the cam I would look at. If the head flows well to only .450, then that's it. Same idea if the head flows well to .600.

The third part of the cam is idle quality.
A cam on a 112 C-line idles nice, smooth.
On a 110 is the classic muscle car sound.
On a 108, the engine has a nice choppy sound.
I would not have a cam cut on a 106 unless it was a purpose built cam.