Ok, I know this is a little dumb question but I want to check the sparkplugs and make sure they are tighten enough as some people said that the v8 has problems with them getting loose, so where are located the sparkplugs and how much should I tight them, just with my hands and then a little bit with the tool, I dont want to strip them, I have changed some before but it was on old dodge cars with the 318. Pics of the location would be great too.