Quote:
Originally Posted by ULTRAZLS1
Was 40 more without the cool down/ unrealistic cold pull that added 10 hp.
Different day and different drivetrain. 15 more than expected is nothing
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the 389 pass the car was at 220...unrealistically hot and the ECU would pull timing (S197 ECU pilled timing over 205) 180deg for the 400 pull while cooler than normal operating temp is above where the ECU would be adding timing or fuel.