Cliff's Quadrajet Parts and Rebuild Kits

General Category => Quadrajet Carb Talk and Tips => Topic started by: Frank400 on August 31, 2015, 06:34:40 PM

Title: Question on needle and seat size
Post by: Frank400 on August 31, 2015, 06:34:40 PM

May sound like a stupid question, but does the size of the needle and seat have an influence on part throttle cruising and heavy load primary ?  I'm talking stock  street engine here.

Title: Re: Question on needle and seat size
Post by: Cliff Ruggles on September 08, 2015, 04:38:26 AM

The size of the hole can have a very minor impact on fuel level at any float setting or fuel pressure, so yes.

It can also effect the fuel level at heavy load or full throttle.  If the carb doesn't stay full then fuel delivery to the engine will change.....Cliff

Title: Re: Question on needle and seat size
Post by: Frank400 on September 10, 2015, 06:14:37 PM

Ok thanks Cliff.  Makes sense.  Frank.