Machining cost

Does anyone know of any good books on small block chryslers? I have seen a couple, but would rather get one that one of you guys recommend. I feel bad asking these basic questions! I did get a repair manual for my dart, it has been a huge help. Here is an unrelated question, how do i find out what bolt pattern i have. I was looking at some wheels on jegs site and couldn't narrow it down because i don't know hao to find this information