Okay, This is a question to those of you who have modified engines (shaved heads, high-flow fuel rails, custom cams, chipped ECU's, etc.). If I drive conservative, the engine degrades on performance over time like it's trying to say "don't drive me like a granny!" If I blow out the dust, meaning punch the throttle, rev. extra high, etc., the engine drives GREAT. Question is, would this indicate a carbon buildup on the pistons or is it something else?
George '89 DX-Hybrid-D16Z6, 125k miles "Seats, Suspension, Engine, MSD, next=dyno"
