Hello,

what´s are your tune up/ignition values for I6, 292 cid engine with a Rochester B carburator (only manifold vacuum port).

My base ignition with unplugged vaccum advance is @600rpm = 8° and @3000rpm 22°

I had to change my stuck vacuum advance mechanism and got now an adjustable vacuum control.

Thanks,

Sven

Last edited by Sven010; 09/11/2024 12:25 PM.
1947 Chevrolet 3800 1-ton long bed
292 cui, GM 14 bolt rear-end, 4 x disc brakes
In Frankfurt, Germany
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