Hi all I have this rev hang issue that is doing my head on, I've looked at all google searches about this but I can't find amyome with a definite fix. My babe is rev hanging over 2000 revs and I did find a split hose going to the idv and replaced that but its still doing same thing and even unpluged mass air valve and it did improve the power but rev hanging still there but not so much so any help please would be great.