Here's a few video's and articles for mild 318 and 360, I'm sure people are getting tired of them but I think there a good starting place for someone trying to figure out a mild combo.
This one is just cam header and 4bbl on a stock low cr longblock 318.
This one is a complete performance LA 318 build but really it's basically a 5.2l magnum (cause they use stock magnum heads) higher cr with a 4bbl cam and headers
These are a mild 360 stock low cr 2bbl to a decent performer cam 4bbl and headers and the other is a 5.9l magnum stock vs aftermarket one. Everything done any of these engine is applicable to whatever you pick, the 360 mods done to a 318 are gonna have similar effect just possible the hp & definitely the torque numbers will be different and at a higher rpms. But still a general idea what to expect.