On 6/1/13 3:42 AM, Chris Simo wrote:
> Unfortunately, most of my triumphs I have are a bit modified or unknown
> mods. Street Cam, different distributor, Carbs with or without vacuum
> advance. - so I've found that 4 degrees is helpful to get them at least
> started.
With a modified engine that has a cam you need more initial advance than
stock. If you have a worn distributor or timing chain you will need
more initial advance.
A good rule of thumb is that our engines do well with about 32-34
degrees total advance. That's initial advance plus vacuum advance plus
mechanical advance. If your vacuum or mechanical advance is not working
properly you may find yourself setting in a lot more initial advance
just to get the engine to run OK at driving RPMs. Never hurts to check
your distributor over to make sure it along with all its advances are in
spec.
But if you have a cam in the engine figure you will probably want about
8 degrees initial advance.
TeriAnn
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