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6,8, or 10 degrees timing on a 390?

By Steve M - 02/22/2004 11:48:41 PM; IP 209.115.87.2

I have a 1970 390 and it ran great when I first set it at 6 degrees, but when I hooked the vacuum advance back up, it runs like crap again. I have read that it should be at 6,8 and sometimes 10 degrees. I tried 10 with advance unplugged and it ran smooth, but I lost some get up and go off the line. Is there a setting that I can leave it at and keep the advance plugged up, or is that a no-no?

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Collapse <b>6,8, or 10 degrees timing on a 390?</b> -- <font color=#0000ff>Steve M, <i>02/22/2004</i></font>

6,8, or 10 degrees timing on a 390? -- Steve M, 02/22/2004

Collapse <a href=../ForumFE/reply.aspx?ID=20353&Reply=20349><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor20353" onclick="return false;">RE: 6,8, or 10 degrees timing on a 390?</a> -- <font color=#0000ff>Gerry Proctor, <i>02/23/2004</i></font><script type="text/javascript">
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RE: 6,8, or 10 degrees timing on a 390? -- Gerry Proctor, 02/23/2004

Collapse <a href=../ForumFE/reply.aspx?ID=20355&Reply=20349><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor20355" onclick="return false;">The vacuum advance is hooked up to the manifold</a> -- <font color=#0000ff>Steve M., <i>02/23/2004</i></font><script type="text/javascript">
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The vacuum advance is hooked up to the manifold -- Steve M., 02/23/2004

Collapse <a href=../ForumFE/reply.aspx?ID=20356&Reply=20349><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor20356" onclick="return false;">RE: The vacuum advance is hooked up to the manifold</a> -- <font color=#0000ff>Gerry Proctor, <i>02/23/2004</i></font><script type="text/javascript">
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RE: The vacuum advance is hooked up to the manifold -- Gerry Proctor, 02/23/2004

Collapse <a href=../ForumFE/reply.aspx?ID=20366&Reply=20349><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor20366" onclick="return false;">I will try that. I will back it down some more.</a> -- <font color=#0000ff>Steve M, <i>02/24/2004</i></font><script type="text/javascript">
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I will try that. I will back it down some more. -- Steve M, 02/24/2004

Collapse <a href=../ForumFE/reply.aspx?ID=20368&Reply=20349><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor20368" onclick="return false;">RE: I will try that. I will back it down some more.</a> -- <font color=#0000ff>bprewit, <i>02/24/2004</i></font><script type="text/javascript">
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RE: I will try that. I will back it down some more. -- bprewit, 02/24/2004

Collapse <a href=../ForumFE/reply.aspx?ID=20369&Reply=20349><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor20369" onclick="return false;">Holley ported vacuum</a> -- <font color=#0000ff>Steve M., <i>02/24/2004</i></font><script type="text/javascript">
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Holley ported vacuum -- Steve M., 02/24/2004

I found the problem!! -- Steve M, 02/29/2004