I usually do pork loins and tenderloins at a higher temp around 300-325 (due to them being lean) and shoot for an internal of 140. I use apple, pecan or peach wood
I prefer the taste you get from charcoal over gas. We used to use a small gas grill, then I switched to a charcoal grill once I learned you can grill with charcoal without the lighter fluid taste by using a chimney to light the charcoal.
After reading this article: http://amazingribs.com/tips_and_technique/debunking_beer_can_chicken.html Beer can chicken does not make any sense. I prefer spatchcocking them anyhow
I just keep my temps at 250 and pull when tender. With 4 ribs it sounds like the uncut short ribs I buy. (They are about 10"-12" long with either 3 or 4 ribs). Definitely good eats!!!