Call Pat at TechWest Racing. He can more than likely fix it and he can upgrade it if you want as well. Don't send it back to MSD. They will put the cheapest parts they can back in it. Pat will put in quality parts. He used to work for MSD so he knows what they put in them and how they can be improved. He's building me a 6A box now that will tromp any new 6A or 6AL off the shelf at a lower cost.