Well, oddly enough I will be building the exact same air cleaner soon for my Jensen Interceptor. I have a CH28 Edelbrock #5440, and I'm going to run an oval Mopar air cleaner on it. I'll post pics when I start...
I have already made other unusual air cleaners, it's not THAT hard, just takes a little planning....
Remember,if you are running a CH28 and want to use the oval air cleaners,you have to run AFB's.Also there will be no clearance between the air cleaners,the carb spacing is about 3/8 closer than the factory intake.
Here is my factory intake,everything from a 62 300H,