here's the spec straight from the DC catalog page
P3412044 68 340 Man.-114 276/284 .444/.453" 112
P3690213 Street Hemi GT-112 284 .471/.474" 109
auto 340: 430/444 268/276
manual 340 (68 only): 444/453 276/284
comp *used* to make a very similar cam to the manual 340 unit. i'll root around in my notes to see what i can find.
most all the aftermarket makes a version of the standard 340/360 4bbl cam. i like the melling piece personally.