1962 Mopar 383/343 HP 'Stocker' - Page 2

Paul Precht · 01-13-2012, 12:05 AM

Quote:

Originally Posted by Barnstorm

3258 and 3259 AFB's were the same carbs that was used on the 413 380/385 hp. We've thought they were rated at 525cfm.

On my flow bench my 3258 and 59 were 445 and 450 CFM. 6x3447s I tested were between 597 and 600. 4x3705s were between 696 and 700. An old 3310-1 780 Holley was 788 and a 4780 800 DP was 780. 340-383 AVSs were 625-630ish. 63 383 AFB was 566CFM.

Paul Ceasrine · 01-13-2012, 07:34 AM

I found an old Carter 'Zip-Kit' booklet,,,,,,,,,,

The #2790 and #2791 AFB's though rated at a general 500 CFM,
were listed at 490 to 505 CFM's.

The #3258 and #3259 AFB's though rated at a general 500 CFM,
were listed at 510 to 525 CFM's.

Besides the size of the Secondary Venturi, all components appear to be the same,
Jet size
Metering rods
Springs
Accelerator pump

Both use the same 'performance rebuild kit'.

01-13-2012, 07:34 AM	#2
Paul Ceasrine VIP Member Join Date: Apr 2009 Posts: 2,546 Likes: 0 Liked 10 Times in 10 Posts	Re: 1962 Mopar 383/343 HP 'Stocker' I found an old Carter 'Zip-Kit' booklet,,,,,,,,,, The #2790 and #2791 AFB's though rated at a general 500 CFM, were listed at 490 to 505 CFM's. The #3258 and #3259 AFB's though rated at a general 500 CFM, were listed at 510 to 525 CFM's. Besides the size of the Secondary Venturi, all components appear to be the same, Jet size Metering rods Springs Accelerator pump Both use the same 'performance rebuild kit'. Last edited by Paul Ceasrine; 01-13-2012 at 08:11 AM.