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What is a spread bore intake?

  #1  
Old 09-30-2005, 02:12 AM
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Default What is a spread bore intake?

What different types of intake manifolds are there? i heard of a spread bore itnake, but i dont know what it is? can any shed some light on this for me? thanks

eirk
 
  #2  
Old 09-30-2005, 07:39 PM
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Default RE: What is a spread bore intake?

A typical spreadbore intake is a Quadrajet intake.

Any intake manifold that is a spreadbore has smaller front holes and larget back holes.. hence a "spread" bore.


Tj
 
  #3  
Old 10-01-2005, 02:18 PM
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Default RE: What is a spread bore intake?

ok, thanks. Do you know why they would make the holes different sizes?
 
  #4  
Old 10-01-2005, 05:24 PM
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Default RE: What is a spread bore intake?

A popular belief is that a 2 barrel gets better mileage than a 4 barrel.

That is wrong... provided you keep your "foot" out of the gas pedal.

In town a 4 barrel meters better than a 2 barrel... and part of that is the spread bore.

The back 2 barrels are for power ( you know that) and why they are bigger bore.


Tj
 
  #5  
Old 07-12-2006, 06:25 AM
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Default RE: What is a spread bore intake?

there are a few holley carbs that are spread bore
 
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