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Holley power valve question
By Fatblockford - 03/03/2005 1:44:15 PM; IP 12.6.117.199
I think I have blown the power valve in my 750 holley (4160), although I have not inspected it yet. It backfired on me and will not idle any more. I've heard that the power valve is suspect in this situatuation. That carb should have come with a 6.5 powervalve. The car has always ran rich. If I have to replace it, I would like to change the valve if needed, but I can't get it to idle enough to check intake vacuum. It's a 68 390 with gt heads. Streetmaster intake, solid lifter cam (adv. duration 310, actual 244, with .524 lift), C6 automatic. If you were going to guess at which powervalve to start with, what would it be?
Thanks
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Collapse <b>Holley power valve question</b>&nbsp;-- <font color=#0000ff>Fatblockford, <i>03/03/2005</i></font>Holley power valve question -- Fatblockford, 03/03/2005
Collapse <a href=../ForumFE/reply.aspx?ID=24185&Reply=24181><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor24185" onclick="return false;">hard to go wrong with a 6.5</a>&nbsp;-- <font color=#0000ff>Barry B, <i>03/03/2005</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=24185', contentMargin: 60, icon: $('anchor24185') }); </script>  hard to go wrong with a 6.5 -- Barry B, 03/03/2005
Collapse <a href=../ForumFE/reply.aspx?ID=24186&Reply=24181><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor24186" onclick="return false;">RE: hard to go wrong with a 6.5</a>&nbsp;-- <font color=#0000ff>Fatblockford, <i>03/03/2005</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=24186', contentMargin: 60, icon: $('anchor24186') }); </script>  RE: hard to go wrong with a 6.5 -- Fatblockford, 03/03/2005
Collapse <a href=../ForumFE/reply.aspx?ID=24187&Reply=24181><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor24187" onclick="return false;">PV doesn't function at idle.</a>&nbsp;-- <font color=#0000ff>Gerry Proctor, <i>03/03/2005</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=24187', contentMargin: 60, icon: $('anchor24187') }); </script>  PV doesn't function at idle. -- Gerry Proctor, 03/03/2005
Collapse <a href=../ForumFE/reply.aspx?ID=24203&Reply=24181><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor24203" onclick="return false;">RE: PV doesn't function at idle.</a>&nbsp;-- <font color=#0000ff>R. Hunt, <i>03/04/2005</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=24203', contentMargin: 60, icon: $('anchor24203') }); </script>  RE: PV doesn't function at idle. -- R. Hunt, 03/04/2005
Collapse <a href=../ForumFE/reply.aspx?ID=24207&Reply=24181><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor24207" onclick="return false;">You might want to let Holley know about this.</a>&nbsp;-- <font color=#0000ff>Gerry Proctor, <i>03/04/2005</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=24207', contentMargin: 60, icon: $('anchor24207') }); </script>  You might want to let Holley know about this. -- Gerry Proctor, 03/04/2005
 when the PV blows -- Barry B, 03/04/2005
Collapse <a href=../ForumFE/reply.aspx?ID=24221&Reply=24181><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor24221" onclick="return false;">PV doesnt function at idle, but you are both right</a>&nbsp;-- <font color=#0000ff>Ross, <i>03/05/2005</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=24221', contentMargin: 60, icon: $('anchor24221') }); </script>  PV doesnt function at idle, but you are both right -- Ross, 03/05/2005
 RE: PV doesnt function at idle, but you are both right -- Fatblockford, 03/07/2005
 RE: PV doesnt function at idle, but you are both right -- R. Hunt, 03/07/2005
Collapse <a href=../ForumFE/reply.aspx?ID=24314&Reply=24181><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor24314" onclick="return false;">RE: hard to go wrong with a 6.5</a>&nbsp;-- <font color=#0000ff>Fatblockford, <i>03/17/2005</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=24314', contentMargin: 60, icon: $('anchor24314') }); </script>  RE: hard to go wrong with a 6.5 -- Fatblockford, 03/17/2005
Collapse <a href=../ForumFE/reply.aspx?ID=24320&Reply=24181><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor24320" onclick="return false;">RE: hard to go wrong with a 6.5</a>&nbsp;-- <font color=#0000ff>Barry B, <i>03/18/2005</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=24320', contentMargin: 60, icon: $('anchor24320') }); </script>  RE: hard to go wrong with a 6.5 -- Barry B, 03/18/2005
 RE: hard to go wrong with a 6.5 -- Fatblockford, 03/18/2005
 RE: Holley power valve question -- walt, 04/18/2005
 RE: Holley power valve question -- walt, 04/18/2005
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