HAVE A 1977 TRANS AM THAT IS STOCK WITH A 400 MANUEL 4 SPEED WE PUT A WHOLE NEW COOLING SYSTEM IN IT LAST YEAR NEW CLUTCH FAN OVERSIZE ALUMINUM RADIATOR AND WATER PUMPAND IT STILL PEGS OUT THE GAUGE AT 220 IT DOES NOT BUBBLE OUT BUT YOU CAN SMELL IT GETTING REAL HOT AND IT STARTS GURGELING ,ANY IDEAS WOULD BE APRECIATED
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