Mild 318 pinging

Thanks for the responses. I will try plugging the vacuum advance and see what the results are and also plotting the entire curve. I already have from idle to 2000, every 200. I have looked at some of Mattax's charts and that's what made me think my mechanical curve might need slowed down using 87 octane and highway gears. It may be a few days before I get a chance to tinker again. I'm sure you all understand, the days of playing with the car all day Saturday have been gone for years now.