I'm looking to purchase a new carb. I'm not sure which carb will best fit my needs, I was hoping someone could help. Currently I have a 440 engine (not the original engine) with a 4 bbl Carter AFB w/ electric choke - the intake is date coded 12.12.68 casting #2806178

The motor is stock, the car is a weekend cruiser, so I'm looking for a carb with decent gas milage, but has plenty of power.

I've been looking at some 750 Holley carbs, which I like, but I just don't know.

 

Also, The car is an automatic.

 

fish -

The 750's are a safe bet with a stock motor, with the double pumpers getting you "off the line" a little quicker than a vac secondary. A basic 4150 model is fine, but you can look at the ProForm series if you like.

Archer

 

a 750 will work but the 440 will be over carbed. 600 would be better and get you off the line faster.

 

And everyone tells me with my Holley 650 Double pumper I don't have enough carb

 

yeah everyone like to overcarb an engine.. ive seen 500 cfm on feverfour cars!

 

Well, I may have found a carb I'm interested in. 510-80555C Holley 650 cfm. Which costs a bit more than I'd like ($386), anyways, would it be better to rebuilt the existing Carter carb or just buy a new one? How much does it cost to rebuild a carb (parts & labor)?

 

its een a wile since i rebuilt one but its not that expensive. i want to say $60.. and labor is free if you do it your self.. theres not many parts in the afb pretty easy job.

 

well remember now, that from the factory, 440's originally got 800's

 

My son and I just rebuilt our Carter AFB 9606 (605 cfm) the kit was $28 and took us about 3-4 hours. In comparison to a $350 new carb, I would say it would certainly be worth trying first.

I was not hard, I can't say we did everything right but we just followed the directions that came with it.

The best part about it was we learned a little bit about the carb and how it works. Shoot I would give it a try!

Joe.

 

800's? 625 was on my 440.. but mine was a 69 tnt crysler,, stock. drove 5 yrs then parked. 800 is somthing i didnt know even the factory over carbed!

 

well gtx i googled it and yep 800 was the common on factory 440's 90%

 

yep
then later on, 440's got thermoquad's, which were 850
i have an 800 on my car, and it runs great
not overcarbed

 

vacuum secondaries

 

ya
so?

 

you got 800 cfm carb with vacuum secondaries it will only use what the needs. a 440 cannot use 800 cfm unless your pullin 8000 rpm

 

well, technically, i have air-valve secondaries
but, nvm
my 440 never bogs, and it doesn't have too much of a cam in it. It has been floored coming off the line, and no black smoke or bogging ever occurs