Ok guys, so about a month ago I replaced my motorcraft plugs with Autolite AP-764s (platinum plugs), and ever since, the car has bucked at low rpms, and idles kind of high (IAC has been replaced, MAF cleaned). I was told that they did not come pre-gapped, and that I needed to use a gapper to put them to 0.054". After doing some searching, I've seen many people say that platinums come pre-gapped and that they can be damaged if you try to regap them. So did I screw up by gapping or was I right in what I did? Sorry if this has been covered, I couldnt find a definitive answer in my searches. Thanks!