Looking for original 454 Ignition curve documentation

[MarcelSub]

Hi,

I am looking for the original ignition curve(s) for a 454 engine.
I don't know if any other specific info is needed, it's inside my 1981 Suburban C20 Silverado.

I checked the manuals that i got (thanks again ) but didn't find them.

Anybody who can help me out?

Many thanks,

Marcel

 

[MarcelSub]

Anybody who can help me out ?

I need the ignition curves for a project to make a special ignition for the engine.

Any info would be very welcome.

Many thanks!

 

[Wes Harden]

this info would be engineering documents. Not sure what your going for but total advance on most mild performance normally aspirated engines is 30° - 35° at 3000 rpm. This would include initial base timing, mechanical advance, and vacuum advance. Or initial base timing and computer controlled advance.