Advancing stock cam in a 360?

I built my 360 magnum stock bottom end and used 4 degrees cam advance with an HEI ignition engine fires off immediately. Set your spark plug gap to .45 to realize the benefit 45,000 volt of hotter spark. The cam advance will increase the cylinders dynamic compression according to David Vizard. I have my initial ignition timing set to 16 degrees at 800 rpm with no issues. According to Vizard the benefits are better power on the low end power with better drivability.