318 cam query

I have power brakes but they use an electric vacuum pump so no issues there.
I like the sound of "something a bit more stout"! This is my first Mopar so I'm a bit wary of the warnings about over camming 318's.
You don't want to over cam it. You'll knock the nuts off of it quick. I agree with Rumble on maximum duration with your combo. It'll still sound healthy and it will still have decent street manners. The other thing is if you tighten the LSA up from 112 to 110 or so, I think you'll gain some mid-range torque and it won't be favoring the top end as much as the 112 LSA does.