Cam choice

So building a 383 for our demon it will be .040 over , 66 block , 452 casting 440 heads we are trying to decide what kinda cam to use for this application? We are looking at this comp cam package k21_224_4 was wondering if anyone has used this camshaft kit ?? What the drivableabilty would be like , how loose of a converter would you need for an automatic in this application

Any help would be great thanks

Mike