Replacement 68 340 four speed cams

Found this and it relates to the Service manual. This also shows the '68 340 automatic cam. Yep, I'm still looking.
*68 340 only
Automatic-equipped Barracudas employ a hydraulic cam with 268/276-degrees advertised duration and .429/.444-inch lift. With the four-speed, there's 276/284-degrees duration and .444/.453-inch lift. Both cams use shaft-mounted 1.50:1 rocker arms and connect to the crank via a double-roller timing chain.