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Original Message

390 in Mach 1

By Tim - 08/29/2001 10:01:52 PM; IP 208.63.187.198

I have a problem getting my carbeurator adjusted correctly (Flooding out plugs) on my 390. It is a 750 CFM Vaccuum Secondary Holley. I began by checking the fuel level in both floats and it's about and 1/8 below the holes. Next I went with smaller primary jets, From 72's to 68's with still no change. Then I suspected a wrong size power valve so I checked the engine vaccuum. At an idle the vaccuum is 16-17 in hg. Slightly increasing engine RPM to 1500 increased vaccuum to 20 in hg. Does anyone have any suggestions on solving this problem?

Tim

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Collapse <b>390 in Mach 1</b> -- <font color=#0000ff>Tim, <i>08/29/2001</i></font>

390 in Mach 1 -- Tim, 08/29/2001

Collapse <a href=../ForumFE/reply.aspx?ID=7884&Reply=7881><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor7884" onclick="return false;">I think its simple: get a smaller carb. [n/m]</a> -- <font color=#0000ff>Mr F, <i>08/29/2001</i></font><script type="text/javascript">
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I think its simple: get a smaller carb. [n/m] -- Mr F, 08/29/2001

RE: I think your right!. -- RC Moser, 08/30/2001

Please tell us more about your car. -- Dave Shoe, 08/30/2001

RE: 390 in Mach 1 -- Tim, 08/30/2001

RE: 390 in Mach 1 -- Ray, 08/30/2001

Collapse <a href=../ForumFE/reply.aspx?ID=7907&Reply=7881><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor7907" onclick="return false;">RE: 390 in Mach 1 (Still Trying)</a> -- <font color=#0000ff>Tim, <i>08/30/2001</i></font><script type="text/javascript">
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RE: 390 in Mach 1 (Still Trying) -- Tim, 08/30/2001

Collapse <a href=../ForumFE/reply.aspx?ID=7913&Reply=7881><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor7913" onclick="return false;">RE: 390 in Mach 1 Try This!</a> -- <font color=#0000ff>Royce Peterson, <i>08/31/2001</i></font><script type="text/javascript">
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RE: 390 in Mach 1 Try This! -- Royce Peterson, 08/31/2001

RE: 390 in Mach 1 Try This! -- John W., 08/31/2001