There is more that's different, if it's an Ultra carb with billet blocks you can change anything for make the calibration work for you. If they are cast blocks the idle feed is likely different and you have to drill them out, tap for set screws you can drill to suit. The calibration in the 9375 is a little better than the 8896, both carbs need metering help. What are you looking at using a Dominator on, and is there a deal on one you'd like to get?