The CD 150 (minus the dashpot) is just the throttle body. You can run it with or without a TPS. I have a TPS mount that I got from sidedrafttbi.com. But the version of MS I am running can also calculate acceleration enrichments from sudden drops in MAP so I know longer use the TPS.
Another throttle body could be used, and would probably improve air flow. But using another throttle body would not achieve my goals. Also, technically, it is against US law to modify or remove pollution equipment. My system allows all original pollution equipment to remain in place.
I realize everybody hates the CD150, and few 1500 owners would be sad to see it go. But, like many LBC enthusiasts, I think the SU is a thing of beauty. So I developed a system that could be easily adapted to almost any sidedraft carb.