New guy here and I'm having some issues with the lly that I just picked up today. I've been searching around on this forum and a few others and haven't really found much that relates, but I have a strange noise that almost sounds like a blow off valve that comes in and out at random times. I haven't had a chance to really inspect it to much yet. Just curious if anyone has encountered this before and if so maybe I can get some advice for a head start soon when I'm off work. I believe this post follows the forum rules but please correct me if I'm wrong. Only mods that I am aware of is a cut off exhaust. Thanks in advance!