Carter AFB Question

Joe Marcinowski · 11-30-2011, 10:02 AM

Anyone know the cfm rating of AFB's #3855 & #4131? These are 65-66 Mopar carb's.

Thanks,
Joe

Dwight Southerland · 11-30-2011, 12:17 PM

Around 550-575 cfm. I have only flowed one carb of those specs (1.437 x 1.563, 1.118 x 1.313) and it flowed 560 cfm on my bench.

Paul Precht · 11-30-2011, 10:51 PM

Quote:

Originally Posted by Dwight Southerland

Around 550-575 cfm. I have only flowed one carb of those specs (1.437 x 1.563, 1.118 x 1.313) and it flowed 560 cfm on my bench.

We're not far off, the one I flowed was 566 CFM. These are the small AFBs with no weights in the back.

Ed Wright · 11-30-2011, 11:00 PM

What kind of flow bench do you have Dwight?

Joe Marcinowski · 12-01-2011, 09:26 AM

Thanks guys!

Joe

Dwight Southerland · 12-01-2011, 09:27 AM

Home made, a la Lee Shepherd.

Ed Wright · 12-01-2011, 11:52 AM

Quote:

Originally Posted by Dwight Southerland

Home made, a la Lee Shepherd.

Mine is home made too. When Superflow was located here in Tulsa, a local machine shop made many of his parts. A long time friend worked there at that time, and he made their parts. Orfice plates, etc. Still had his little notebook with all the specs. He whipped out a set of parts for me. Mine is just red instead of blue.

Last time I was at R&M they still had that flow bench Lee & Buddy built. Somebody had asked about buying it. David and Bruce mentioned it.

Mark Maez · 12-04-2011, 01:15 PM

The 4131 is a 525cfm, I run that carb on a 66 383 combo. Its a awesome working little carb...

11-30-2011, 10:02 AM	#1
Joe Marcinowski Member Join Date: Nov 2005 Location: Northern Ohio Posts: 203 Likes: 849 Liked 33 Times in 15 Posts	Carter AFB Question Anyone know the cfm rating of AFB's #3855 & #4131? These are 65-66 Mopar carb's. Thanks, Joe __________________ Joe Marcinowski 3377 STK

11-30-2011, 12:17 PM	#2
Dwight Southerland VIP Member Join Date: Dec 2001 Location: Arkansas - In the middle of everything. Posts: 2,001 Likes: 64 Liked 780 Times in 194 Posts	Re: Carter AFB Question Around 550-575 cfm. I have only flowed one carb of those specs (1.437 x 1.563, 1.118 x 1.313) and it flowed 560 cfm on my bench.

12-01-2011, 09:26 AM	#5
Joe Marcinowski Member Join Date: Nov 2005 Location: Northern Ohio Posts: 203 Likes: 849 Liked 33 Times in 15 Posts	Re: Carter AFB Question Thanks guys! Joe __________________ Joe Marcinowski 3377 STK

12-01-2011, 09:27 AM	#6
Dwight Southerland VIP Member Join Date: Dec 2001 Location: Arkansas - In the middle of everything. Posts: 2,001 Likes: 64 Liked 780 Times in 194 Posts	Re: Carter AFB Question Home made, a la Lee Shepherd.

12-04-2011, 01:15 PM	#8
Mark Maez Junior Member Join Date: Oct 2009 Location: Earth Posts: 19 Likes: 0 Liked 0 Times in 0 Posts	Re: Carter AFB Question The 4131 is a 525cfm, I run that carb on a 66 383 combo. Its a awesome working little carb...

11-30-2011, 11:00 PM	#4
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 390 Times in 170 Posts	Re: Carter AFB Question What kind of flow bench do you have Dwight? __________________ Ed Wright 4156 SS/JA