Well its in and guess what i still have the spark knock. it is set the same way that DAMON ,on your article, says to set it , i even have the advance lock out plate on and on the 2nd to last notch, where most of it is locked out. the initial is et at 10 and when i hook the vacuum advance to manifold it jumps straight up if not it is close to straight up. i would say it would be about the same maybe a little more than the length of the timing mark itself. the advance can is set 10 turns counter clockwise from fully set position. also i have one blue and one silver spring, maybe i need 2 blue springs ?. come on Mike help a brotha out here.