i bought some spark plug wires that have a grounding cable that comes attached to them. I install the wires then my car started to hesitate , stall , misfire, backfire and sometimes cut off. The are 9.5mm wires and I currently have 2 months old NGK V-plugs. i grounded the spark plug wires to the battery but after the engine is running( getting up to temp) for about 10-15 min the misfires starts all over again. the hotter the car gets the more it acts up. But when I install the normal plug wires they run smooth. I have ran numerous test as the wires are good( i think)
I'm running a 14" timing on this motor,. Should I get NGK irrriduiom plugs , what should I do?
I'm running a 14" timing on this motor,. Should I get NGK irrriduiom plugs , what should I do?