A costly lesson learned today. With an ECU controlled timing system, setting base timing is a two man job, one to work the timing light and make distributor adjustments; and another to work the calibration module for Base Timing Mode ON/OFF and to adjust throttle position to the required rpm. Doing it alone results in cooking the pretty ceramic coating off of headers in about 30 seconds because leaving the system is Base Time Mode for anything more than a few seconds pushes tons of raw fuel into the headers. Jet Hot will be getting a set for a second round of coating $$$, unless I paint them black......