Sean-
Burning Tree, as it plays today, has several par fives on the scorecard. I don't have the scorecard handy, but #2 is a short, reachable par 5 of less than 500 yards.
A few months since I've played it, but I recall #9 as a par 5 on the scorecard, although I may be wrong; I do recall it was a moderately uphill hole, playing probably about 460-480.
#16 is a par 5 on the scorecard as well, also in the upper-400-yard range.
In the context of today's game, I suppose the holes don't play as par fives for the better player.
Wayne's information is valid; to add to this, the nines at Burning Tree were switched, I believe, sometime before or around 1950. Not certain as to why.
The seventh hole would be today's 16th. I don't recall today's 5th (14th according to Wayne's scorecard) being overly long. The "old" 18th hole would be today's 9th hole, and today's hole plays longer than the original.
The interesting thing about the course is that only one hole, #2, features fairway bunkering, and only the bunker about 40 yards short of the green is really in play for a longer driver of the ball.
It's a great atmosphere and a fun course to play.