Setting timing for /6 with new electronic distributor

The advance curve is different from the original distributor I can guarantee. So what was good for the engine with the original one won't be with the replacement. Especially if the old advance weights were sticking or the vacuum can was blown
And all vac advance cans aren't the same either. There is a number on the arm that connects to the advance plate, that tells the amount that that particular advance can will provide.