Engine oil

Moper,

I have a 360 with a comp cam 20-223-3 for Hydraulic Flat Tappet - Advertised Duration 268 - 280 - Lift .477 - .480 - Mopar - Small Block.

I understand in theory what this means but I have absolutely no idea in practice. I have an essentially 360 crate engine. I have a 650cfm carb. I was under the impression that this cam is just a mild one that will make the engine sound a bit cooler.

Should I use that GM additive that I talk about in my previous post ?

Ian.