Cooling system is in excellent condition. Radiator is fairly new ac delco. Distributor is not adjustable. Thanks ��

2.73 in drive. Car in closed loop. Where do I learn a crash coarse in doing this? Sorry to be su new. I do have eehack and a cable. Thank you. Walter

Most recent smog reports attached. Before and after new cat. Cat was 2 years old. Thank you 🙏

Thank you for the reply. I have posted to another forum here: https://www.camaroz28.com/forums/lt1-based-engine-tech-9/failed-smog-high-nox-again-887486/ The posted log is after a reset. I am...

Hi. My name is Walter. I am a newby. I do have a decent technical aptitude but not sure about this? I have a 94 LT1 Z28 that I would like to change the stoich from 14.7 to 14.4 to slightly enrichen...