I just brought home a 99 k3500 crew cab srw long bed, its got the 6.5 in with a heath diesel towing computer and cooling system and waste gate controller. I noticed comming home that the truck only got up to 165-175 on the coolant temp with a 44-50 out side air temp, is this normal? Is there a problem with it running too cool? It does already have a pmd relocator and 4 in exhaust and aftermarket down pipe, I think the only thing I am going to do is remove the muffler. Its currently running about 10 psi of boost which from reading seems normal, what is the max boost I can run and How do I adjust it with the aftermarket waste gate controller? I look forward to all the advice and getting to know you guys, Thanks in advance.

Chris