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Original Message
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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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