340 camshaft source P4452782

RustyRatRod said
Naw, the 4 speed cam has a good bit more duration. That in your link is the 69 and up automatic and everything cam.

Going to have to order a 2nd one later on for my challenger , its got a 4spd 6 pack setup x-heads , but stock cam 72ish I believe , she roars nicely but think this cam would be that much better , gotta love these old school engines