340 no can start

I have a line on the balancer put it to zero dropped the distributor in


then it could be 180 off


Try pulling the #1 spark plug and put your finger on the hole while cranking it over, when you feel the pressure on your finger, that is the compression stroke - set it to TDC on that turn and put the distributor to TDC on #1 cylinder and then set it to 10° advance....