Re: Crossram air filter?
Jim this is directly from Wayne Guinn's website. Wayne is the Camaro crossram "guru" IMO.
The element used with the plenum air box, Chevrolet PN #3942572 (Purolator AFP 22) was 1 1/2 inches high by 53 inches in circumference. This yields a total breathing area of 79.5 SQ.IN. As a reference, the standard four barrel air cleaner for the 302 is 3 inches high by 44 inches in circumference and yields 132 SQ. IN.! Yes, the initial 2X4 element was restrictive in terms of being able to flow 1200 CFM AT 7200 RPM. In contrast, the element that was used later (Second Design) in conjunction with the fiberglass hood, Chevrolet PN# 3963825 (Purolator AFP 66) was 2 1/2 inches high BY 53 inches in circumference which yields a total of 132.5 SQ.IN.
The Baldwin filter specifically I can't say if it's the same or not.
"..............what, and get out of aviation??"