I have a friend who has a 57 galaxy that he bought a barrett jackson. It was an obvious flip car but runs good. 428 with unknown cam and compression, edelbrock intake and 750 eddy carb. I put in a posi with 3.70 gears and a new pertronix distributer and had the c6 rebuilt. His complaint is off the line its doggy. And i agree. It has a stock converter and was thinking about putti g in a 2600 stall? Any thought about this? Short of pulling the motor and spending lots of money i think rhe stall would help tremendously