Update: installed a stock gen 3 supercharger with stock pulley and an L36 throttle body. the throttle body leaked coolant at first, so I put an L67 gasket on it, and fixed it. I also picked up a map sensor from an 04+ gtp because it is physically the same size as the map sensor in the naturally aspirated car's but is 2 bar instead of 1 bar. when I swap the L36 intake setup back on, that sensor will get wired in, so the install will look better.