Quote Originally Posted by peteyx
I can pick up a used CompCams 268H-10 cam, lifters and roller timing set cheap. I have a '75 460 in my Ranchero that is stock except for a 750CFM Edelbrock. I also have a set of C9VE heads that I am planning on porting and swapping out the stock heads. The specs on the cam are:
Basic Operating RPM Range: 1,500-5,500
Intake Duration at 050 inch Lift: 218
Exhaust Duration at 050 inch Lift: 218
Duration at 050 inch Lift: 218 int./218 exh.
Advertised Intake Duration: 268
Advertised Exhaust Duration: 268
Advertised Duration: 268 int./268 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.494 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.494 in.
Valve Lift with Factory Rocker Arm Ratio: 0.494 int./0.494 exh. lift
Lobe Separation (degrees): 110
Intake Valve Lash: 0.000 in.
Exhaust Valve Lash: 0.000 in.

Can this be used with either the stock or older heads without much additional work? Will it have a noticeable idle?
You may here a little out the exhust but not much.
Make sure you run good valve springs with these heads.