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Timing advance help needed.
I am trying to time my 383 stroker but am having an issue with the timing advance maxing as soon as it is connected to my Holley 80508SA carb. I am attaching a picture to help me show what I have. With the vacuum disconnected and plugged I can time the low end to 10 degrees TDC but as soon as I connect the vacuum it shoots up to @32 degrees. This doesn't seem right to me. I connected the vacuum line to the port the manual shows as the timed spark (to distributor). Is there something wrong or am I just not educated enough on how it all works and it is actually correct?
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