[CSX 4027]

Timing is a science and is critical. Anyone that does the twist without a light is a criminal. First, before you did a thing you should have removed all your spark plugs, numbered them and had an expert read them. Go to a spark plug reading website, maybe champion has pics and see what detonation does. It will actually eat away at the top of the pistons and could blow a hole. The plugs will show the story. Then, put a new set of plugs in and set total advance all in by 2500 rpm's at 34 and see what the motor does via the plugs. Then adjust up or down 2 points at a time and check the plugs again. If you cruise at 60-65 at 2500-2800 at least you will not be running retarded pinging the hell out of the motor. It does however sound like the damage has already been done though sorry to say.