4.50 on 35 wires ok?

I got a set of 4.50 tires off a fellow hamber for a good price but now im alittle concerned. Any of you guy running this combo?

 

I had a pair fitted to my 16" Kelseys but when I found that they are only rated for 660 lbs @30psi I changed them to the 5.00/5.25 which are rated at 1070@ 32psi. They may end up holding up a Hemi so I'd rather have a bit of safety margin.

 

It's done all the time. Is it "right", I dunno? Doesn't seem too out of line to me though.