Finally, my first 360 and goals for it! I'll be asking a lot of questions.

I will be following 318willrunns porting videos and I will also have the heads milled. The shop who will be doing the milling, and taking care of some valve guides also clean the heads. I thought it would be nice to work on clean heads, but then I thought again... Is it better to do the porting first and then have them milled? When porting I will be moving them around a lot and it might be dumb to put the nice clean surface through that?