Doug,
Here is the one I prefer!
http://www.absoluteradiator.com/Prod...asp?idProd=306
Of course you know that. Check out Don Parnell, 48 IDA, gallery. He does use one that has the inlet on the radiator. He is in the CCX group as well so he can be asked specifically what he did. I am not sure what he did but it must work with the ponies he is generating.
Good luck!
Jeff