I have tried everything to try and get the temp down on this car. I have recently switched an entire setup from another car which was rarely street driven and here is the combo. Basic rebuilt stock short block with GN-1's, 206-206, TE-44, ATR headers, and other basic mods. More to the point are CAS V2 front mount , Cas Aluminum radiator, Flexalite dual fans, 160 degree thermostat and Meziere electric water pump. The car will run around 180 down the highway but goes right off the chart when in traffic and this is without AC on on 70 degree days. Temp will go right on above 220 in no time and peg the gauge (autometer gauge but have backed it up with Direct Scan). I believe that the car should sit on the thermostat on the highway and below 200 in traffic from the post that I have read. We have tried straight water, checked the thermostat, checked to see that all areas were sealed from outside air, etc. I talked to a knowledgeable mechanic today that thinks the Miziere pump may be moving the water too quickly and not allowing the radiator the time to cool. Has anyone ever had this problem or am I missing something else more obvious. Thanks