Opinions on this Holley Ultra carb

[GrandpaKevin]

Been thinking of trying a bigger carb on my 440 4 speed Challenger.
Current carb is a 20 plus year old Holley 750 double pumper that has been gone through many times over the years and still seems to work decent.

I have a chance to pick up this new in box Holley Ultra 850 double pumper for half price.
https://www.summitracing.com/parts/hly-0-76851bl/

Anyone have opinions or experience with these carbs?

Thanks.

[Chryco Psycho]

The biggest thing I look for is removable bleeds for the idle & jet circuits as this makes a Huge difference in tuning with different cam profiles , this carb doesn't seem to have that feature , it is not listed & the pictures don't look like removable bleeds so I would pass , Check around for Pricing on a Proform carb , Mancini used to have the best pricing around , you should be able to get a great 850 carb for a decent price with better features 

[GrandpaKevin]

Thanks.

[Brads70]

The biggest thing I look for is removable bleeds for the idle & jet circuits as this makes a Huge difference in tuning with different cam profiles , this carb doesn't seem to have that feature , it is not listed & the pictures don't look like removable bleeds so I would pass , Check around for Pricing on a Proform carb , Mancini used to have the best pricing around , you should be able to get a great 850 carb for a decent price with better features

removable air bleeds are a must IMO I have an Quickfuel 850 DP on my 451 and love it,

https://www.summitracing.com/int/parts/qft-q-850-an/overview/

and just bought this 650 DP for my newly rebuilt AMC 401 . I haven't run it yet so I can't comment on this carb but it has all the features I was looking for at a cheaper price.

https://www.summitracing.com/parts/qft-br-67301/overview/


Gives you some options....

[gzig5]

The QF Brawler line has received pretty good reviews for performance and value.  I think they have four corner idle adjustment and removable bleeds.
https://www.summitracing.com/parts/qft-br-67214/overview/

[JS29]

Another quick fuel carb fan 

[SpeedD408]

How are  you controlling the manual secondaries???

[gzig5]

How are  you controlling the manual secondaries???

With your right foot?? 

[Chryco Psycho]

 

[JS29]

 

[Scooter]

I had the 750 version (electric choke) in my Fairlane for about 6 years... good carb. If you can pick it up for 1/2 price, hard to go wrong.