Replacement 68 340 four speed cams

@Dan the man

It's a larger cam, shows more port, filling cylinder better, make a bit more power. Is it going to be night and day better, no. It will make more power and stretch to a slightly higher RPM when making that power.

The old school 214/224 camshaft that is available through a bunch of vendors is essentially the same camshaft as a 340 4 gear cam.