I am running 33x12.5 BFG AT/KO on a 15x8 rim. What tire pressure should I run them at on the street. When I got them mounted the guy put 40!! psi in them. I dropped them down to 32 psi and they handle a little nicer. A buddy of mine runs the same setup except he runs 23 psi for street driving. I thought that was a little low. I did the chalk test and I figured that running 25-28 psi is ideal. But isn't that a little low for street driving. Please help!!