eddyvera2000

I recently did a spark plug and wire replacement on my 2019 Silverado 5.3 with 70 k miles. I got the original acdelco spark plugs and wire for it. I ran them with the pre-gapped of .035 after the truck felt a bit with a rough idle so I correct the gap size. they were pre-gapped to .035. and the Manuel called for .037 - .043. I corrected the gap size to .04 I did the replacement Because the truck felt a bit shaky. but not to much. after the replacement I found out that the harsh gear change from 1st gear to 2nd gear went away. but my truck is still idling a little bit "strong" I noticed after the fact that the original spark plugs were at a .037 gap size but I need help determining if its the gap size issue or something more? anyone else having the same issue?