Hello. I have a fresh build 292 that is overheating (on a test stand),i discovered it had a pump from a 250" & purchased a rebuilt 292 pump from Napa.I've acid washed the rad.& flushed it. Run it with & without the t-stat.Also have a 20" box fan up to the rad. & the engine has a fan (flex) installed.50/50 coolant.Timing 8 Deg. I have noted that the crank pulley & the pump pulley are the same dia. 6.75",I've seen some like mine & some with a smaller pump pulley.Any thoughts.Thanks. Bruce..
