Did anyone read the March 1999 issue of Hot Rod? In it is a article on a red 1970 Chevelle SS that a guy at the GM testing facility in Phoenix AZ built. He put a 502 crate motor in the car with a aluminum high rise manifold and cowl induction. I've got a 1970 with a 396 (402) and a Edelbrock Performer 2-0 intake manifold with cowl induction. The problem I'm having is making the cowl induction air cleaner fit under the hood with the high rise Edelbrock. If you look closely at the car in Hot Rod it look's like the cowl induction air cleaner is slightly shallower.Did chevy use different air cleaner's for high rise manifold's? Are there air cleaner's from other GM model's (like the GTO) that are shallower that may work? If anyone can help, i'd appreciate it! Narti