Thread: encourage bbc 509ci

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Originally Posted by Alex-grand

Cam installed into the block according to the cam card.
What’s the ignition degree ?

12 degrees before top dead center ignition firing sounds close. You can try it at several different locations, 8, 10, 12, 14, and so forth. Just be careful not to exceed 38 degrees total, initial and centrifugal.
Here is an excellent article explaining vacuum advance that will aid you in dialing your motor in....
Begin reading at FACT AND FICTION CONCERNING VACUUM ADVANCE...
http://www.crankshaftcoalition.com/w...op_dead_center

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