engine still not cool enough

What rad did you buy ?
22" Proliance,2 row by any chance ?
Is this a rebuilt motor ?

I have pretty much the same set-up as you. (Jag clutch)ect.
The car runs hotter in the summer (200-205)than I would like.
The car has a rebuilt motor,so hopefully it will loosen up a bit and run a little cooler.
I changed fans,thermostat,no change. Running no front plate helped a little.
Everything is new in the car,and has a shroud and all hood weather strips.
Long story short,I think it is the proliance 22" 2 row radiator.I just dont think it has enough cooling capacity for a warmed over small block.
Would love to have a 70 340 heavy duty ac rad for the car. Really think this would cure the problem.

There is such a big list of things that can make a car run hot/overheat,makes it tough to pinpoint it sometimes.