Engine died during break-in

If anyone is interested as to what the problem was it was a bad engine to firewall ground. I had cleaned both contact ends and tested the wire for continuity but evidently the wire itself was bad because I replaced it with a parts store braided ground strap and finally got spark to the plugs. Was previously getting spark from coil wire but not to plugs. Very strange that the ground wire gave out while the engine was running. Thank goodness problem finally solved. Thanks everybody for your help.
Glad you got it figured out:-)