454 timing w/ prestolite ignition

ob

Admiral
Joined
Aug 16, 2002
Messages
6,992
Re: 454 timing w/ prestolite ignition

mechanical or vacuum advance?
 

denniz

Senior Chief Petty Officer
Joined
Aug 21, 2002
Messages
743
Re: 454 timing w/ prestolite ignition

8 degrees. If you have vaccum advance you dont have a marine distributor.
 

ob

Admiral
Joined
Aug 16, 2002
Messages
6,992
Re: 454 timing w/ prestolite ignition

9-10 degrees before TDC.on vac advance .Each engine and load condition dictates the final setting.I'd start with 9.
 

captianwh

Cadet
Joined
Apr 22, 2003
Messages
8
Re: 454 timing w/ prestolite ignition

OOps, brain not engaged... It is a mechanical advance. What RPM do I set the timing at???
 

ob

Admiral
Joined
Aug 16, 2002
Messages
6,992
Re: 454 timing w/ prestolite ignition

Then as Rod Knocking states at 8 degrees BTDC.850-900 RPM's
 
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