Posted by Don in Missouri on Monday, August 16, 2004 at 11:39AM :
In Reply to: Re: Vacuum method of Ignition Timing (318 V8) posted by MoparNorm on Monday, August 16, 2004 at 8:38AM :
I've been told the timing light method is unreliable, because the outer ring on the harmonic balancer with the timing marks moves over time if it is mounted in rubber.