Robin
I would think the PHB might make make running the exhaust easier if the brackets were made right. I need to do mine for my 63 and I am planing on making the frame mount sit on the bottom of the drivers frame rail as close to the tire as possible. For the rearend bracket, I'll get it as close to the stock LCA mounting point with it being level with the axle line and only a few inches from the rear cover on the diff.
I currently have a 3" X-pipe going to dual mufflers in front of the axle (Warlocks, built like a flow but you can uncork them). I will then neck down to 2 1/2" go over the axle and PHB to a 3rd dual 2 1/2" to single 3" out muffler. I also have a fuel cell that is currenlty mounted behind the axle which I will move up so the bottom of it is almost level with the floor of the bed. The 3rd muffler will sit bellow that with a heat shield.
There is no way I would be able to do that with a Watts link. I feel there is even less obstruction with a properly laid out PHB than a Watts link.
