Timing Retarding @ high RPM

Here's a tip.

Timing lights have electronics. They have a slew rate. You can't always catch timing retard with a timing light. But you can if you test the entire ignition on a distributor machine.


That's why only use your timing light on your engine. I've seen 6-7 degrees difference between timing lights.

Time your engine off plug readings and not a number.

And for the hard headed and slow learners, ALL ignition boxes retard with RPM. It's a KNOWN fact unless you are just too hard headed to learn.

When I was using a mag (and base timing my engine at 48 to make up for the inherent timing retard a mag has...just like an ignition box does) I can't tell you how many morons told me to ditch the mag because it retards with RPM. I'd tell them so does your box.

It seems the same idiots from 1988 are still not learning anything.

Next up...setting your power valve opening from idle vacuum.

Time to learn.