Just purchased a 87 Minnie that the previous owner had a New Holley 4 bbl recently put on, went to get the rig smogged and the tech said it was running too rich and it didn't pass. When he did the H...
Have been researching this topic of glowing exhaust on line and some say too rich, others too lean, also possible causes are; catalytic converter clogged, o2 sensor, throttle position sensor, cracked manifold or timing. The timing was off 3 deg but dont think that was problem... Where to go next ???