sounds like you be hangin with the "OLDMAN"
best to check after sitting over night
fill to cold full level,start engine and run at idle for 15 mins or so
when it good and warm..t-stat open you will see the water move/flow
I use the HD stock 8 vane wp with the 5/8 shaft and large bearings
they are on the HD cooling package for cop engines
it will have ribs in stead of the gun holes alog the shaft housing
it should have the recovery tank hooked up and the rad cap should have the valve
it will push coolent out of the rad and the recover it as it cools down by a vac type system
this is normal as long as it sealed and working properly and not pizz on the ground
the pumps have a weep hole on the lower side of the shaft that will lleak water also causing a low rad and over heat problem