Carb Question, if that's the prob?

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Apr 21, 2008 | 01:15 AM

jake1

Thread Starter

Pro

Joined: Sep 2004

Posts: 545

Likes: 8

From: Murphy Texas

Carb Question, if that's the prob?

Noticed it the other day while on a drive. If I'm going say 60 and then floor it, if sound like it's choking. If I come up slowly it's fine. Are my secondary not kick'in in or a floater or needle somewhere messing up? 71' 270 hp with rodchest 4bbl.

Thanks.

Apr 21, 2008 | 01:28 AM

BigBlockk

Drifting

Joined: Sep 2004

Posts: 1,959

Likes: 1

From: North Bend Ohio

The secondary air valve may be popping open and leaning the mixture out. You can adjust the air valve spring 1/8'th of one turn tighter and see if that helps.

This could also be an accelerator pump problem. The next time you start up from cold, open up the air cleaner housing and check for proper accelerator pump function.

BigBlockk

Later.....

Apr 21, 2008 | 11:14 AM

V77Vette

Instructor

Joined: Dec 2007

Posts: 247

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From: Sanderson Texas

i would check the pump first(if you have inline/carb fuelfilters check them too)

Last edited by V77Vette; Apr 21, 2008 at 11:17 AM.

Apr 21, 2008 | 11:23 AM

Jud Chapin

Race Director

Joined: Sep 2001

Posts: 10,560

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From: Wellington, FL

St. Jude Donor '11 thru '25

You might also replace the fuel filter and check the air filter.

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