Trace amounts of white smoke out the exhaust

Hey guys! Happy Easter! Anyways, so at idle, I am getting slight amounts of white smoke coming out the exhaust and if you go WOT it flows out a small cloud at around 3500-4000 rpm. I know my car runs a little rich and that black smoke is running way to rich. It is even amounts out of each pipe so I would be very skeptical if the heads were cracked and leaking the exact same amount of coolant into the cylinders. I wanna say its because I am running a little rich since it doesn't do this really back home and right now I am at a higher altitude. Am I right or am I missing something?