[Plowman]

Make some thing to limit it your self. With a hot cam, 10 deg max. "To Modified it".

 

[Plowman]

Can you help.

I found no GM part number for "sbc HEI advance can 10 to 12 deg[vacuum advance] looking it up "in the best of section". I think you would have to know "vacuum at idle" too.

 

[Plowman]

Good INFO.

Sound's like what I Said in Post#2. Sound's like good info Baddbob.

 

[Plowman]

What is the ignition timing on a 1955 Chevrolet, BelAir 327 ci with a Four Barrel Carburetor.