Looking at a Northern brand radiator for my Big Block 69 Dart GTS. Anyone here ever use this brand before in a A or B body big block Mopar? Wondering about the fit (will it bolt right in)?, how well it cools,(does it cool any better then the stock factory rad)? What about using stock factory hoses, and what about my factory fan shroud? Lastly is it worth the $509 dollar asking price. Any advice will be much appreciated. Thanks.