A quote from yhe article:
"The only change made was the replacement of secondary spring (the one that is loosest) with one from the kit. This procedure keeps the primary part of the ignition curve standard but quickens the secondary part so that it peaks nearer the point of peak torque and just above the tip-in point of the secondary throttle."

Does anyone now what the kit consist of, or what other dizzy springs can be used in the A-Series dizzy to achieve this advance closer to peak.

ddgonzal: I do not see the advance curve on the link you gave me, maybe something wrong on my side? Here is the link http://wiki.datsun1200.com/index.php/ ... r#Advance_Characteristics