Basic Tuning: HELP!

Earlier we said to adjust the initial timing for the most idle vacuum. Not the most rpm at idle. Big difference. But if it's running good where you have it now and not pinging you must have it pretty close. Like the old saying goes, "don't mess with it if it ain't broke". And don't worry about numbers (timing, etc..) if it's running good and not pinging. When you have an engine like yours that has different heads and cam you can't always go by numbers. You just adjust it to where it runs the best and it sounds like you got it pretty good.