4link bar diameter?

[pinheadandy1]

I'm working on collecting the parts to bag my 78' c10 and wondering about the available 4 links I could use. Most of the higher end 4 links I see these days use 1 3/8" or even 1 1/2" bars. Some use 1" such as KP's 6 link. Now my truck is pushing somewhere in the neighbor hood of 450hp. Is there any concern with running 1" bars with a setup like that? Should I go with something more stout like an Art Morrison kit or is the KP sufficent? If the 1" are fine why do so many companies use larger bars? Or are the larger bars really a better bet in this case? Thanx

Andy