Air flow vs. rad shroud

[Hammerhead]

Yes, the overheating while pulling at low speed is my obvious concern.

The radiator size was the reason that I ordered this particular model of truck, but when it's over 95ish it just seems to have the opposite effect of what it should. Until 90 it's great, but once it gets much over that it doesn't seem right to me.

My new gig has me running more TX than Midwest as before, so that's why I'm looking for some form of accrued heat relief.
I'm even considering cutting two holes in each side of the hood and installing electric rad fans to help expell the heat. With my frame being full of tire chain hangers, boxes, and the APU, the hot air must travel all the way out past the diff's to escape and I'm truly feeling it this summer. I'm at double the number of >100° days I normally have...
I'm a fat Canadian, I ain't built for this crap!