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RE: 2X4 Vacuum Secondary Adjustment

By Gerry Proctor - 05/30/2006 7:58:56 AM; IP 137.242.1.15

I've always had the shortest path to success by starting with the lightest spring and working my way up if need be. It's very difficult to get satisfactory or full vacuum secondary on a Holley with a light car and decent rear gear.

Proper secondary operation should not be very obvious. A bog on the secondary would mean they're coming in too quick but, again, that's not much of an issue with a light car and steep gear. The transition into the secondary should be smooth and linear. You shouldn't be able to feel it. Kind of hard to explain perfectly.

A 2550 lb. car? I'd put the thing on some scales, or more accurate scales. A Morgan comes in near that weight.

This thread, so far...

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Collapse <a href=../ForumFE/reply.aspx?ID=27449&Reply=27449><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor27449" onclick="return false;">2X4 Vacuum Secondary Adjustment</a> -- <font color=#0000ff>John, <i>05/28/2006</i></font><script type="text/javascript">
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2X4 Vacuum Secondary Adjustment -- John, 05/28/2006

Collapse <b>RE: 2X4 Vacuum Secondary Adjustment</b> -- <font color=#0000ff>Gerry Proctor, <i>05/30/2006</i></font>

RE: 2X4 Vacuum Secondary Adjustment -- Gerry Proctor, 05/30/2006

Collapse <a href=../ForumFE/reply.aspx?ID=27456&Reply=27449><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor27456" onclick="return false;">RE: 2X4 Vacuum Secondary Adjustment</a> -- <font color=#0000ff>John, <i>05/30/2006</i></font><script type="text/javascript">
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RE: 2X4 Vacuum Secondary Adjustment -- John, 05/30/2006

Collapse <a href=../ForumFE/reply.aspx?ID=27464&Reply=27449><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor27464" onclick="return false;">RE: 2X4 Vacuum Secondary Adjustment</a> -- <font color=#0000ff>walt, <i>05/30/2006</i></font><script type="text/javascript">
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RE: 2X4 Vacuum Secondary Adjustment -- walt, 05/30/2006

Collapse <a href=../ForumFE/reply.aspx?ID=27478&Reply=27449><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor27478" onclick="return false;">TY guys, and a note for one-handed Walt</a> -- <font color=#0000ff>John, <i>05/31/2006</i></font><script type="text/javascript">
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TY guys, and a note for one-handed Walt -- John, 05/31/2006

RE: TY guys, and a note for one-handed Walt -- walt, 06/03/2006