Hi, New Member here. Located in Orange County, So Cal. Have 87 chevy pickup I'm trying to get ready for smog inspection. My ECM has wrong chipset and I think that's the reason it runs rich. I need chips for 5.0L / 700R4. No mods or upgrades to engine now or planned. Can anyone help or suggest where I can purchase or trade my 5.7L chips for what I need? Thanks, Dave