A few years back (50???), when we were kids, there was a large chrome plater in East L.A. When we learned of it, we promptly removed everything imaginable from the "A" and took it down to them in a box. We were sent to the back door where they chuckled at us, took the box, and told us to come back in a week. How cool was that??
Superior Plating in Pomona. These people do very fine show quality work. I would not be concerned over their workmanship...ever. The bottom line is that I am now cooler than ever!
Not being experienced with the cooling characteristics of the 34' Chevy, I can now discuss the summer drive. Summer here is 105 to 115F with asphalt temperatures of 150F+. Considering that the fan is running slower than normal (1.1 times crank speed) I feel that the new radiator core is doing the job. Heavy traffic or long signals result in the engine coming up to 200F but 1/2 mile at 25/35 mph brings it back down to the thermostat (180).
I believe that the addition of the grill retarded the cool down time and sped up the heating at a signal.
I must emphasize that we are able to cool down 700 lbs of cast iron 20F in 1/2 mile. That seems appropriate to me.