We have a 340 grind hydraulic cam in our otherwise stock 72 Dart .030 over 318 with a two barrel and it runs nice, but I couldn't tell it has anything different than stock.
Idle is smooth as can be, and it has the stock 318 springs.
It was a quick and easy swap, but I couldn't tell any performance differences though I never really drive it as it is the Wifes car.
Just a suggestion would be to talk to Oregon and tell them what you want out of it, then they can suggest a cam for it. Phone: 360-256-7985