I recently bought a GTP and am currently modding it. I was doing a scan today with my aero gauge and noticed random misfires on 3 and 4. I didnt think much of it as I intended to change out the stock plugs that were in the car with copper autolite 105's gaped at .55. When I pulled the old plugs i noticed that the electrodes were extremely worn. "as if they had been in there for a very long time" i checked the gap on the plugs and they were at .65 on what was left on the rest of the electrode. a couple of them were a little over .65 so i figured that's where the misfires were coming from on the 4 and 3 cylinder. After the swap I had more misfires then before on all cylinders. The misfires are not noticeable to me but they do show up on the scan. my question is should i gap the plugs to .65 and see if that eliminates the misfires. also is it safe to gradually increase the gap on the front plugs and scan as i go till i get the misfires out because you all know how fun the back plugs are. Any advice in this matter would be great