Had to replace the water pump in my 69. I did the back plate to pump mod. which turn out to be the best mod for these cars. The car came with a three row rad. from the po. I guess he was trying to do something about the high temp. which I think wouldn't even be need but I guess it helped. I ran the car for a while and it didn't even hit the half mark on the gauge. Now I can start to look at trying to add a few more degrees in the timing an see how it runs. It may work or it may not work, lets just see.