I ordered a reconditioned pump today as they seem to be the only ones that have a cast iron impeller. It seems the new pumps all have the stamped metal impeller that everybody says to stay away from. Is that what you guys have found as well? The Wallace racing trick seems to have helped alot of people so I'll have to give that a try. I can't remember what mine looks like inside but does that trick apply to the 8 bolt pump as well?