elmariachi...correct assumption re the radiator
Thing about a 160...while no differnce going down the road, it'll be cooler when you stop, and it's easier to keep something that's already cool than cooling down something that's hotter (or some such logic). As someone else said...just more of a margin to play with.
I have no additional shrouding than any other tin can (Kirkham)...which is basically none, and it's not really sealed all that well around the radiator.
If the pulley brings no joy...get the radiator swapped. If you need a rationale, compare the cost of the radiator to the cost of the motor and your own kharma being disrupted every time you're stopped in traffic and have to start watching the needle.
Fresno vs. Houston...close, but I can always drag in Bakersfield, which smells like Houston.
