Good News! I got throttle response!! And a ruff idle without engine stall , all without the supercharger belt connected. I bought a 69 inch 6 rib belt that is waayyy to long. Measured 58 inches (estimate) so I will use like 57 or 56 “ .. the lsj is a 6 rib belt, so ill either have to cut one rib off or get a 5 ribbed one from napa by size.