I am running a 350 in my 55. Latley I have had two spark plugs foul out when I realy floor it!
The weird thing is that both times the electrode is curled over and touching the porcelain insulator in the plug. It first happened on #5 plug, then #6 plug. The plugs are Bosch/Platinum plugs and are 2 yrs old.
Im wondering if my pistons are some how hitting my spark plugs. If so why now?
Roger
