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Variable ignition advance? 140-160 1974

posted by  uniberp on  Fri May 7 02:27 CST 2004
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last visit: Mon Jan 31 07:08 CST 2011
[RELATED]

How do I narrow the ignition timing advance curve? I want less advance at low RPM and the same at high.

1974 K-jet B20f 145. Runs fine, except pings slightly under low rpm acceleration load. At high RPM +3000 it seems to get it's act together and has great power.

The advance is greatest at closed throttle, right? So when I step on it the vacuum releases and the timing retards. I think I might not have to step so hard if I had less advance at idle. Could I then lean out the K-jet some more?

Is there a replacement variable timing curve distributor?

Will this all be moot when I install my rebuilt engine?





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