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Holley Carb?

elks

1/2 ton status
Joined
Nov 8, 2009
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Location
NW Colorado
I have a holley street avenger 670 carb on my street truck. I am needing to determine which fuel supply line I need?

It has the dual intake on the passenger side. I looked on line and there appears to be a few different options (4150, 4160, etc.) I do know that my shop instructor said I need the one slightly longer. But not sure what that means other than on the front and rear of the carb I have a little extra spacer that makes the carb a little longer.

Can anyone help clear this up? I would like to have a good measurement, but the truck is at the shop. the ony nights I can work on it are Wednesdays and would prefer to have the right supply line when I arrive so that I can fire it up right away.
 
Try Summit or Jegs and look up the carb, then look at the "related parts". I'm sure the site will suggest a fuel line to go along with a carb.

If all else fails, call them. :idea:
 
If you have the 'spacer' at both ends that means you have metering blocks for primary and secondary, which uses the longest fuel line. A lot of vacuum secondary Holleys have a metering plate on the secondaries, they take the shorter line.

I have a 670 Street Avenger out in the garage, I'll go take a look to be sure it's got metering blocks. I'm heading out there anyway.
 
Yeah, dual metering blocks. The fuel inlets are right about 9 3/8 center to center.
 

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