HI MERT WHAT THROMASTAT DO YOU HAVE IN YOUR CAR ? IT MITE NOT BE OPENING ALL THE WAY WHEN RACING DO NOT LEAVE IT OUT PULL THREMO AND PUT IT IN BOILING WATER AND SEE IF IT OPENS ALL THE WAY FIRST. I WOULD REPLACE IT WITH A HIGH FLOW ONE ABOUT 12$ AT PEP BOYS YOUR WATER PUMP , IS IT UNDER DRIVE WITH SMALLER PULLEYS AND BY HOW MUCH? THE WATER PUMP I HAVE ON MY MOTOR IS THE ALUM EDELBROCK ONE WHICH HAS A FLAT PLATE ON THE BACK OF THE IMPELLOR TO HELP IMPROVE THE FLOW. HAVE YOU DONE A COMPRESSON TEST AND LEAK DOWN TEST ON THE MOTOR it COULD BE A HEAD GASKET ABOUT TO BLOW LOOK FOR A DISCOLORED SPARK PLUG THAT LOOKS LIGHT IN COLOR, IF YOU USE WATER ONLY THE SPARK PLUG WILL LOOK BRAND NEW AND HAVE NO CARBON ON IT . LOOK IN YOU EXPANDION TANK FOR BUBBLES IT THE SYSTEM FOR HEAD GASKET LEAKEN INTO THE TANK THEY HAVE A KIT TO CHECK THIS PROBLEM DO THE BASICS FIRST I HOPE YOUR CAR IS NOT HURT
AND YOU WILL BE ON THE RACE TRACK SOON GOOD LUCK RICK LAKE RDCOBRA428 AOL@COM POWER IS YOUR FRIEND BUT TORQUE IS WHAT MOVES YOU FORWARD.