Hey guys my buddy has a prob n was gona see if anybody can help.. My buddy changed his pump on his LB7 Bc his went out.. He put a used one on n pump works great but reg was bad causing it to command to much pressure at idle and making I miss and smoke a little. He bought a new reg n out it on n now it runs n idles fine but won't rev at all when he gives it throttle. Any ideas?