All I'm trying to convey is that Edelbrock advertises a 65 to 67 Hi-Po water pump for the early timing cover. They do not look correct for an R-Model replica, but they work better than the aluminum Ford pumps especially in warm climate.
I live in Central Florida and my replica runs cool, as the extra capacity Aviad oil pan, oil cooler and larger Galaxie radiator with larger radiator opening and front valance all help to minimize the engine heat. If I was going to be doing more open track and racing, I would change back to the Edelbrock water pump. The early timing cover with Ford Racing balancer and Ford aluminum water pump IMO makes a nice combination for a replica.
FYI, my stroker engine was assembled by Scott (pbf777 on this forum) and it runs and look good for my purposes.
Don
gt350bp