I have tested the 8896 (non Hp) versus the non HP 9375 on a 440 brackt motor with a Mopar M1 4500 intake on the motor, both carbs had the stock jetting and squirters and squirter cams. The 9375 was quicker and fater than the 8896 Same thing on a engine on a DTS engine dyno, the stock 9375 was worth about 8 hp more and 5 ft. lbs more torque than the 8896