It has 190K, and just powered down to idle and then died while accelerating under normal driving conditions. It has good spark, good fuel pressure, and compression is low on all cylinders, some more than others. The timing belt looks fine, and the rocker arms seem to open and close normally. The only thing that looks abnormal is one bank / set of rocker arms has a sooty / carbon residue on them. Any ideas? Thank you for your time! Greg
