Check out the Comp Cams 268H cam and the appropriate installation kit- - - -valve springs, retainers, keepers, etc. If you choose to run a double-row timing chain, don't forget to use a thrust button so the cam doesn't "walk" back and forth and cause the ignition timing to fluctuate. I would always braze a big flat washer to the middle of the timing cover (on the outside) to prevent it from "oil canning" from the pressure of the thrust button.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!