help finding proper heads...

Well, I have a stroker 360. These are "J" heads (915 I believe). These were 1.88, but changed over to 2.02. Why is one side milled .040 more than the other IDK? Someone really F'd up!
I have a Lunati 10200703 cam (I think I want to go one higher).

Yes, Donald Driver rules! It's weird even here in Packer land no one knows why he didn't play this year?? He is still a top receiver at 37. so?? IDK? Kind of a waste.