Well if the Jets are leaking pass o rings it'll be really obvious because the manifold will be soaked inside , but that very well could be the problem.
I always grab the main jet wells with a pair of pliers and gently try to pop them off. If they come off, I clean them up and glue them back on with seal all. If they won't come off, I brush some seal all all the way around the perimeter of each joint and let it dry.
