it likes alot of timing low but I'm only able to get 26* WOT without knock. I'm assuming this is because of the long duration of my cam. just goes back to every motor is different.
Good heads with a fast burn chamber and tight quench will require less timing. People seem to think more is better when it comes to advance but the goal is to make the most power with the least amount of spark advance. When you start spark advance before TDC some of the energy from combustion is wasted as increasing pressure tries to prevent the piston from achieving TDC.

I'm still waiting for the day when in cylinder pressure sensors are part of the hotrodder's tuning arsenal.