Timing suggestions for 360?

dgc333 said
I have a couple of caveats to add;

The vacuum advance pod has a number stamped on the arm (usually on the bottom side so you can't see it when it's installed) that lists the total possible advance you can get. The number is expressed in cam degrees (don't know why they did that when all discussions of timing are in crank degrees) so you need to double the number to relate it to timing at the crank.

The adjustment changes the preload on the spring that pushes the arm back to the zero position. Making an adjustment changes the vacuum level at which the advance starts to move and consequently the total amount of vacuum required for full stroke. So you could add enough preload that it will take more vacuum to get full stoke than the engine generates effectively limiting the amount of advance. If you need to need to limit the timing the advance can add you are going to better off getting a pod with less advance built in.

Dave, I couldn't agree more with your posts. I've always tried to stress the importance of a vacuum advance on the street. It just makes sense. A couple o fnotes on my responses.....i take a lot for granted when I spew about a subject. Such as most people know the basics....and when I talk about timing on a Mopar, i am 99.9% of the time talking about the Mopar electronic ignition. It just slap is the best ignition to run, IMO. It's almost always right on the mark right out of the box for a street car. I've always been impressed with how close they are.