I hope I got the attention of the right people.I need a good block for a 15-30 A #7303 I will trade an early new hart parr front casting for it. I would also just buy block if that were an option. The casting is the one with triangle holes. the block must be usable borable or sleeveable  . 605-685-3463  <!-- e --><a href="mailto:pgwinter@gwtc.net">pgwinter@gwtc.net</a><!-- e -->