Making Pulled Pork

[daryljobe777]

Since last week I made boneless ribs on a stick (not really ribs, but shoulder cushion meat on a skewer) and they turned out fantastic, I now have the craving for some pulled pork.

I haven't made any since last year (I've always used boston butt), and then it was in an oven. This time around I want to try it on my grill with some hickory or mesquite chips. While I wish I had a smoker, all I have is a Weber kettle, so I am planning on indirect heat with about 12 coals per side, adding a few every 45 mins or so.

Is 4-5 hours sufficient for a ~4 lb roast? The web surfing I have done shows 8 hours for 7-8 lb picnics/larger butts reccomended, so I am not sure on time.

Any other hints or suggestions?