Original Message
RE: Re: 390
By Dave Shoe - 03/18/2001 2:16:31 AM; IP 216.243.158.51
Are those low-flange headers which only port-match emissions-era FE heads or are they high flange headers which port-match to Ed heads and pre-emissions heads? If you have a 5/16" port mismatch, you could be developing a turbulent restriction at the header flange at 5000RPM.

Also, have you tried winding it out with the air cleaner removed? That's a heck of a lotta flow you're pulling from a six inch diameter filter. What's your manifold vacuum look like at WOT and 5000RPM?

Shoe.
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 390 -- bear, 03/17/2001
Collapse <a href=../ForumFE/reply.aspx?ID=5564&Reply=5562><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor5564" onclick="return false;">Re: 390</a>&nbsp;-- <font color=#0000ff>Dave Shoe, <i>03/17/2001</i></font><script type="text/javascript">
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 Re: 390 -- Dave Shoe, 03/17/2001
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 RE: Re: 390 -- bear, 03/17/2001
Collapse <b>RE: Re: 390</b>&nbsp;-- <font color=#0000ff>Dave Shoe, <i>03/18/2001</i></font>RE: Re: 390 -- Dave Shoe, 03/18/2001
 RE: Re: 390 -- bear, 03/18/2001
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 RE: Re: 390 -- FE427TP, 03/18/2001
 RE: Re: 390 -- bear, 03/19/2001
Collapse <a href=../ForumFE/reply.aspx?ID=5575&Reply=5562><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor5575" onclick="return false;">Re: 390</a>&nbsp;-- <font color=#0000ff>410cougar, <i>03/17/2001</i></font><script type="text/javascript">
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 Re: 390 -- 410cougar, 03/17/2001
 RE: Re: 390 -- bear, 03/18/2001
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 Re: 390 -- RC Moser, 03/18/2001
Collapse <a href=../ForumFE/reply.aspx?ID=5584&Reply=5562><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor5584" onclick="return false;">RE: Re: 390</a>&nbsp;-- <font color=#0000ff>bear, <i>03/18/2001</i></font><script type="text/javascript">
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 RE: Re: 390 -- bear, 03/18/2001
Collapse <a href=../ForumFE/reply.aspx?ID=5595&Reply=5562><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor5595" onclick="return false;">RE: Re: 390</a>&nbsp;-- <font color=#0000ff>ANDY, <i>03/18/2001</i></font><script type="text/javascript">
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 RE: Re: 390 -- ANDY, 03/18/2001
Collapse <a href=../ForumFE/reply.aspx?ID=5602&Reply=5562><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor5602" onclick="return false;">RE: Re: 390</a>&nbsp;-- <font color=#0000ff>bear, <i>03/19/2001</i></font><script type="text/javascript">
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 RE: Re: 390 -- bear, 03/19/2001
 RE: Re: 390 -- ANDY, 03/19/2001
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