well what i found was the plug wires dont hold up too well, i found out because i started up the car in the dark about 11pm and the light show from the wires was crazyyy. the spark was low thru the wires to the back side of the motor. when the wires came close to the intake manfold the spark got greater. the wires are motorsport a set, the front wires did not spark. i tried to tape it with my digital camera but no luck. to me this will explain the missing bc they only show up when the car is warmed up.