Carb question

["Kerry Pinkerton" <pinkertonk@xxxxxxxxx>]

 

Square bore means the primary and secondary bores are the same diameter.  Spread bore means the secondaries are larger (typically...I guess it could be reversed but can't imagine why).  The theory is that the car will run better and more efficient on the primaries as if the carb itself were smaller.  When you get into the secondaries the big honking air valve opens up and your gas guage drops noticeably (grin).

 

KerryP
Patch panels fabricated
Pinkertonk@xxxxxxxxx
dte.net/57imperial
Imperials -- 50 Limo, 57 roadster, 61's, 62, 68 Convert, 73, a 66 300 and a bunch of lesser marques

----- Original Message -----

From: Dan M Wing

To: mailing-list@xxxxxxxxxxxxxxxx

Sent: Tuesday, June 03, 2003 11:28 AM

Subject: IML: Carb question

Hi,

 

Curious again.  What is the meaning of

a 'square bore' vs a 'spread bore' carb?

Dan Wing
Marcy, NY USA

 

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