Have you fluxed your lead?? This really helps clean the lead and helps it pour well. When your lead is all heated take a flat head screw driver move it up and down along the sides of the pot.
Get heavy gloves on and do as atijigs stated, I use an old bass jig with heavy wire hook cut the barb off, bend it into an L shape. Put a pot under the spout lift the handle and push it in and out. If you have some spinner making wire you can take a really long piece and do it from the inside also - just follow the pour bar until it comes out the pour spout.
flux your lead and stir it, you'd be surprised at the junk that comes up. You say you have "good Lead", is it pure, tire weight, 50/50 mix??? I've got a bullet head mold that HATES pure lead, have to use tire weight in it.
Let us know how you do!!