I replaced my old opti, plugs and wires when I pulled the engine. The car is still not running right. I changed the 58mm TB for the stock 48mm and the Ram Air. I changed the BOSCH plugs for the NGK's and I rechecked the Taylor wires. The car runs better now, but it is still not running right. It idles high and the ECM keeps putting out lean codes. I changed the fuel pressure from 44 through 47. Ed Wright recommended 47. I still get lean codes. I am now going to swap the new opti for a newer opti and see if there is a change. If this does not work, I am going to shoot the engine with my shotgun. Okay so maybe I wont.