Thanks for the tips. The radiator is new. ordered from Gm back in 1995. Was in the packing till it was installed in the car. Took cap off and checked to see if fluid anti freeze was being sucked down when reving motor up. Radiator cap is the correct one correct fan shroud and new fan clutch. You know how you can pick up a corvette catalog and oreder anything you want and it is suppose to be correct. HAAAAAA. I have the distributor and the carb in the shop. I am having the Distributor recurved to full advance at 3000 rpm and the carb jets and power valves checked for correctness to the size of the motor. So I am going to have to wait till I get them back to check the fan clutch but I hear it roar when I rev it up and it is warm. Been dincking with old vettes for 35 years 3rd big block car I have had. but this one has me stumped. Maybe the temp will go down after I get the carb and dist back. Will let know when I get it back together. Big car show in Topeka this weekend so the 67 may have to stay home. But I can drive the ole 59. Oh how sweet a 283 sounds. But not like the thump of a big block 427.LOL