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Sorry I have not given an update.
The head gasket change did make an improvement, so there was some slight leakage of combustion gasses that would push coolant out when I ran it hard on the interstate. I drove it to Iowa again after the headgasket repair and it never pushed any coolant out but, it was still not cooling like it should.(I could take off with a cool motor and run thru a tank of gas on the highway without overheating but when I would stop for gas and shut it off and the temp would go up from sitting hot, when I got back on the road it would not cool back down.)
So after much debate and talking with my local radiator shop guy we determined that even though it was flowing 36 GPM it was not exchanging the heat out. It had been tanked out and cleaned 3 times already, so the decision was made to recore it, and go with a 4 row instead of a 3 row just incase. It seems to be fine now although I havent been able to drive it a long ways on the interstate when its been hot out yet I drove it 70 miles tonite and it never got over 170 but its pretty cool today. Thanks for all the input and help with this I'll try to remember to post another update after a trip when its hot out again.
Thanks again for all the help I think its finally going to be good now. BTW this motor is in my 51 Shoebox, I am rebuilding the coupe motor right now too.