I run the source housing and pump and don’t have a problem. 1974 duster with factory 2 core 26 inch rad. No shroud. Declutching 7 blade fan. 470 stroker with the block half full of hard block. Just saying. Kim
I drove mine again yesterday , got up to 198 , was only about 90* tho.
I bought mu alum pump housing off ebay, and checked it against the orig. 440 Chrysler pump, didn`t take much to clean it up and make the passages bigger---------
