When my car would start the oil pressure would take 5-8 seconds to turn out the dummy light. Many people told me this was the norm but, it seemed odd to me. After doing a ton of research I saw that there was supposed to be a standpipe anti drainback on the oil filter housing and that the oil pressure relif valve could stick as well. I assumed someone removed the standpipe to make it easier to get the filer on/off. Did my first change yesterday and turns out I was correct. Standpipe was misisng. I had researched ahead and bought the wix 51806 filter with the internal standpipe. Did the change and fired it up. Near instant oil pressure with this and the magnum starter! I'll end up returning the Mopar performance high oil pressure spring kit as I don't think I'll need it. Unless it's worth it for a bone stock engine. Thanks to all who posted this info.