that's your best bet. if you run 2 front and 2 back, eventually you'll change your mind and have to redo everything, might as well do it right the first time.
Definatly run 2 per corner
I have a 95 Fullsize and im a little guy and that fucker swayed and rolled like hell with 4 valves.
like someone said before its scary lol.
Its fine when its all aired up, but when u drop it a little to cruise low going down the interstate it rolls hard and starts swaying from the air transferring from one side to another.