Thanks for the reply Trey! He has completely rebuilt the PVC system, but we never thought about the intake gasket leaking! Use oil, oh yes, but this just started mid summer 2012. I'm not sure if he has checked the plugs, I do know he just changed them out last spring. It's seems like a blue color smoke and gets worse when you accelerate? At idle its not to bad. I have not noticed any smell but it reminds me of a friends truck in High School, fill the oil check the gas.
. Well I hope we can get it sorted out!
Thanks
Travis