Ok I have an issue and I don't want to mess it up. I got a 6 lb lower that is sitting in the tool box. On the truck at this time I have a 2.9 upper that I got on a steg 5 port blower. I still have my stock blower. With the hd upper on it. I want to put the 6 lb lower on it. I have a sct ba2400 but I think that it is messed up or something. I was told that it was good and I am trying to see how to test it. But I got a mafi from a fellow member on the way.