mopar P4532597, 4500 style is similar to the P4876334. but the carb base is a 4500 series holley and the intake runners are over a 1/2'' taller. overall its 1''? taller than the P4876334. cannot find any pics online of it.
P4532598AB intake has no rails or bottom. looks like a big X. basically a tall s/p tunnel ram.
both of these are racing intakes.