G'day gang.
Found this during my nightly trawl. It's a tech tips site on Corvette Fever
Not a bad site. It has lots of tich tips. Here is a small extract from one of them:-
Recurving Your Distributor for More Power
In a perfect world there would be no need for ignition advance curves. As soon as the piston in your vintage Vette reached top dead center and the engine built maximum compression, you'd be able to light the fire. Kaboom. Job done. But this isn't a perfect world, and neither is the case of ignition advance curves.
Why Spark Advance Is Necessary
Let's look at why advance curves are required in the first place. Spark is most often introduced into the cylinder prior to the piston reaching TDC. This simply gives the spark sufficient time to light the air-fuel mixture. As engine speed increases, then the time required to bring...........To read more
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