[CSX 4027]

Engine builder that build efficient well built 427's do not want to make the power with timing advance. My 427 made it's peak power with only 32 degrees. It was 581 HP and 12.1 : 1 compression.
My Winston Cup motor makes 781 HP with 12.5 : 1 and only 30 degrees of timing.
Less is better if it is built right.