[DeTomaso] Holley Carb jet extension-stalls on braking

Art Stephens artstephens at verizon.net
Tue Jul 28 14:54:50 EDT 2009


Clay,
You do not have to remove the carb to adjust the floats.

Art


----- Original Message ----- 
From: "clay willmott" <claywillmott at hotmail.com>
To: "List Pantera" <detomaso at realbig.com>
Sent: Tuesday, July 28, 2009 10:22 AM
Subject: [DeTomaso] Holley Carb jet extension-stalls on braking


>
> I recall a thread on the 351 C not being level and tilts forward which may 
> cause the car to stall in some cases with hard braking.
> A few people suggested a type of venturi or tube apparatus to run from the 
> front to back of the carb as I recall.
> My car does this of course.  It will die if you really mash the brakes 
> right as you come to a complete stop.  It does Not do it with 
> accelerating.
>
> I called Holley to order one of these and the tech person who was very 
> nice and seemed to know an awful lot said I would need Jet extensions 
> #122-5000 which are 8 bucks.
>
> Questions:
>
> Can I try to have someone reset the float higher to stop stalling on 
> braking?
>
> Do I actually need those venturi pipe things or the jet extensions above?
>
> Do I have to remove the carb?
>
> A local shop told me if I bring it in they can try to adjust it then put 
> it on the dyno??
>
> I am not sure if my carb needs rebuilding or anything it is about 6 yrs 
> old and is a Holley 4150 with 800CFM double pump with manual choke and 
> mechanical secondary according to tech today when I gave him the stamped # 
> on my carb.
>
> Thanks
>
> CW
>
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