Double D-
You can run an adapter to run a 4150 carb on a 4500 style manifold, you can run a 4500 style carb adapted down to a 4150 intake, but you're totally defeating the purpose of the 4500 style carb. Bottom line is, either find and buy a 950 or get another intake.
Skip
PS- going out early Friday morning, you up for it?