cam

Comp makes a pair of mech cams for the /6. The most radical is a 260 degree .440 lift. They claim a smooth idle for both.

Mopar Performance has a more radical cam in P4529342 (268 deg, .460 lift). This P/N includes lifters. The also recommend a stiffer spring with this cam, P4120249

If you can find one, the HyperPak cam was 276/268 deg, .430 lift.

Of the production pieces, the 71-77 mech cam was the hottest. (244 deg, .406/.414 lift, p/n 2806 211)