how many cc's is the head and with a stock head gasket, what will the compression be if you mill it 40 thousanths. i know stock is 9.2:1 i searched and heard various things. like as much as 10.5:1 and like as little as 9.6:1. i need the big guys on this since i am going turbo soon. i am guessing it is 10:1. correct me if i am wrong.

 

It'll raise the comp a full point or so (according to c-speeds comp calc), putting it at around 10.2:1

Some people say its off by +- a point or two.