is it worth installing cam in stock 318?

Its about sound. All Im looking for is that rough idle for now. If I want real performance I get a turbo kit, but then again I would need to convert it to standard first. This one is just for cruising. Although I have to say it pulls pretty good. I would almost say its faster than my '84 Z28 350.

In that case, start pulling plug wires until the engine won't run anymore. Then replace the last wire you pulled. Now your engine idles rough and you can see what the off-idle torque would be like with a cam that's too big for your engine.