All pontiacs have the 90 deg aluminum bracket for mounting the filter. (there's two types, FGF's point the filter straight down while the big pontiac brackets tilt the filter towards the engine) If you have interference problems with the headers, Ames has an extra adapter that goes between the block and the existing bracket that rotates the filter 45 deg towards the firewall. People with long branch manifolds have to use these. I say Ames because somebody here got a crazy looking adapter from somewhere else (Classic?) that didn't fit.
