I have just bought a 97 firebird with a 383. It has no smog pump, has a single 3in high flow slp cat, has o2s. It is giving a P0410 and a P0420, and the o2 systems are showing not ready. I bought lt1edit and I started some reading, but I am still not sure what needs to be set in the PCM to get by the emissions. Anyone able to help?