360 J heads porting info

I was just wondering how would i go about porting a set of 360 J heads. Right now I have them off the car cut for str8ness, and hot tanked valves are still out but i'm going with the 2.02 and 1.60. So i was thinkin of porting these heads my self and just wanted to know what should i cut out and what should i smooth out. This will be the first time i ever attemped to port and polish a set of heads so I need detail on what to do. Thanks