[JAM1775]

Your Lobaks have a 7/8" center core surrounded by the augers. You can upgrade those to a larger 1.5" center core Race Lobaks which flow way more air and use a different auger design. Also, the Lobaks are usually built with 6 augers...you can request only four augers which is what I have. My Race Lobaks idle close in sound to my old 7/8" Lobaks but bark really loud when you jump on them. Don't know the size of your headers , peak RPM or power but the Race Lobaks may be a good match for your BB.