Cams for 318's

I ran the "Summit Racing manual trans" cam in my 318 with 4 speed and 391's stock heads with edelbrock intake and 600 Holley, didnt run bad. In fact alot of people would ask if it was a 340. I had an older fella in a gas station say "that thing sounds good is it a 340...? totally a street car just to be clear, but I raced a couple a buddies and won against all of em. one guy in a 70 Mustang with 351, the other in a Chevy truck LOL! chevy guys :)