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Original Message

The vacuum advance is hooked up to the manifold

By Steve M. - 02/23/2004 8:40:48 AM; IP 172.132.22.15

The vacuum advance hose goes from the distributor to a vacuum outlet on the rear passenger side of the 390. I cant remember if that is where it goes or not, but that is where it is getting its vacuum from. I have a holley 650 on it, I will see if I can find that ported vacuum you were referring to so I can see if that makes any difference. It starts popping erratically under load after about 3200 rpms. I cant figure out what it could be. I had the advance plugged when I put it at 6 degrees, so that is why I am stumped. I am pretty sure that is what the book calls for on it. It is a 1970 390. Thanks for your info.

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Collapse <a href=../ForumFE/reply.aspx?ID=20349&Reply=20349><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor20349" onclick="return false;">6,8, or 10 degrees timing on a 390?</a> -- <font color=#0000ff>Steve M, <i>02/22/2004</i></font><script type="text/javascript">
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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 <b>The vacuum advance is hooked up to the manifold</b> -- <font color=#0000ff>Steve M., <i>02/23/2004</i></font>

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