AFB carb question

[cawley]

Whats the biggest cfm AFB carb ?

 

[brian6pac]

I believe 850 cfm,

I'm wrong

1412 is an 800 cfm

 

[xLURKxDOGx]

Whats the biggest cfm AFB carb ?

Old or new?

 

[rumblefish360]

OE - 750
Edelbrock- 800
Modified - ???????

 

[cawley]

old 60s or 70s style

 

[brian6pac]

I have a 4640 on my 70 440 and it's a 750
that's a AVS

 

[Hipo65]

Back in the day carter made a three barrel AFB carburetor I think for pontiac that I thought was around 900 cfm. Look up "three barrel carter afb" kinda cool looking carbs!

 

[rumblefish360]

Yup! Holley and Carter made a 3bbl. carb for NASCAR. I heard from a few that the Holley's were hard for a street tune/drivability but sang like heck on the track at WOT.
I never met anyone with a Carter version. Maybe one day I'll make my own.

 

[brian6pac]

Found a picture of one!

 

[rumblefish360]

Can you find one from looking coward from above?

 

[brian6pac]

Repeat that!

 

[brian6pac]

Anyway, I found the spec. 1963 Pont 421 SD carter 3636 939cfm

 

[Hipo65]

939cfm I was close!

 

[cawley]

I need info on 4bbl carbs. that mopars used

 

[rumblefish360]

Oh wow! Ok!

A shot looking from above the top of the carb. Like so.

 

[ValiantRacing]

I believe 625 was the largest AFB

 

[AJ/FormS]

I heard or read some scuttlebutt many years ago that Carters were rated their 4bbls differently than how every body else rated theirs. Anyone else hear that?

 

[rumblefish360]

I hear so many different things that discredit all makes of carbs except Holley's it makes my head spin.

In short, no.

 

[AJ/FormS]

Carter Carburetors ~ Advertised CFM Ratings and Corrected CFM Flow Ratings ~