James, that would work however looking at the sleeve and the shaft I’m pretty sure the collar has to but under the distributor flange. The shaft boss on the distributor that the sleeve slides on to isn’t that wide and if The collar was on the intake over half the collar clamping in behind the sleeve there’s nothing there on the shaft but a space. My concern would be it coming loose over time. Both the sleeve and collar are light aluminum.
having said that the sleeve is less diameter than the intake opening and the collar not sitting on the intake would need that gap sealed.
once Steve gets a pic of his I’ll know if it sits on the intake with your idea will be ok. I like that option better. The collar where the clamp screw has a space like a piston ring in it that would need a dab of silicone to seal it Too