It finally stopped raining here so I pulled out my old motorcraft spark plugs and replaced them with autolite double platinum that I gapped at .051. I also put on a set of APC 9.3 mm wires. My reason for the swap was 4 other people own the same model year (2002) I have and 2 of them had the same problem with spark plugs needing a change to stop the car from stalling. I wasn't stalling much, but it could be annoying and it upset my wife once. Now, I've suspected that my car was modded and unmodded before being traded in, but the gap on the old plugs was set for a screaming demon coil!!! The plugs were in awful shape. Now my car feels like it is running better, but it also feels like I lost some HP. I changed 1 plug and 1 wire at a time, so I know I didn't cross the wires. I used a little anti seize and lightly coated the ceramic with dielectric and put a little more on the wire terminals. Could I actually have lost a few HP from the smaller gap? What size gap are most of you using? Does the larger gap hurt the engine or just wear down the plugs faster?