I'll make a plug for reverse sear. Those are some pretty big steaks. 180 degrees or even smoke for an hour or so. Then showtime, if your pit can make 450 plus, or if you have grill grates awesome. I move my steaks over to a 600 degree gasser with grill grates. two three minutes a side, checking temp regularly.
The reason I use reverse sear is that I feel it reduces the risk of a straight pure grill sear. Pure grill its easier to under do the center or over do the outside.
Edit: I expect some debate here
I want to note I didn't say the smoke flavor was better on reverse sear, nor did I say it was a superior process, I only put forth that I feel it reduces risk of over, or under done steaks.