Hi, I just did a 103 build on my 07 Streetking, 103 takeoff with heads, juggs and flattops with ACR adjustable Pushrods 255 cams. The bike runs great except for some tapping I hear coming from the left side of the motor. and it's not all the time. 50 to 70 range not at idle not sitting still , only when going down the road. I put new lifters in, Could this be them making the noise or something else. Mind you when I did this the bike had over 81,000 on it. Any help or ideas will most helpful.