edelbrock carbs - Team Camaro Tech
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post #1 of 3 (permalink) Old Dec 13th, 01, 09:43 PM Thread Starter
Join Date: Nov 2001
Location: Little River, SC, USA
Posts: 11

just wondering, what exactly is a Q-jet spread bore? and how is it different from the others? and also, how do i know if that's what i have or not?

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post #2 of 3 (permalink) Old Dec 16th, 01, 10:24 AM
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Join Date: Jun 2001
Location: Sluis, Zeeland, The Netherlands aka Holland
Posts: 734

Can anyone help? I know I can't! (sorry)

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post #3 of 3 (permalink) Old Dec 16th, 01, 10:45 AM
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Join Date: Apr 1999
Location: Fortuna, CA
Posts: 26,530

A spread bore is has smaller primaries and larger secondaries. Unless you punch it the engine runs on the primaries. A spread bore is a way to get better fuel economy and also performance.

Typical 4 bbl carb. (sq bore)
O O <-- primaries
O O <-- secondaries

Typical spread bore
o o <-- primaries
OO <-- secondaries

Oh! Q-jet is short for Quadrajet... Hope that helps.

"The '69, the '96 & the club"

[This message has been edited by DjD (edited 12-16-2001).]

[This message has been edited by DjD (edited 12-16-2001).]
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