Re: {Chrysler 300} AFB carbs / Edelbrock

[Bob Merritt <bob@xxxxxxxxxxxxx>]

The AFB was first used in late 1957 production Chryslers (not letter cars).

Here are pictures of my 57 Saratoga AFB compared to a 1966 version:

http://www.simplexco.com/auto/1957/57/57carb.html


Bob



On 7/30/2023 3:50 PM, John Grady wrote:
> Hi
> Quick question I ought to  know myself but suddenly not sure .
> So 58 dodge 361 or 383 58 (?)—-  I think it was first use of afb vs wcfb on mopar ? 300 E had 2 afb too
> So rebuilt it twice — once outside , once myself could find  nothing really “ wrong” , terrible , repeatable bog when secondary opened . Cannot be fuel flow as no problem to 90 mph and we know bowls are full when sec first opens . Replaced pump anyway .
> Gave up and changed to 650
> edelbrock , ran perfect out of box , although yet to have high speed bog test , but seems fine .
> ( Larger diameter  neck , FYI and a lower carb body — I found 1” neck extension and opened air cleaner bottom) Without 1” it hits choke linkages .
> So in doing this , afterwards I noticed the  secondary air valve in the Edelbrock. ( described for the AFB in carter book too ) , but the carb I took off had no air valve at all , at first i thought missing (?) — aha- no wonder a bog  — but close inspection reveals no place to even mount it , no shaft holes etc . Carb i took off had the normal progressive linkage to secondary too.
> So ? were early afb made without air valves ?  . = gonna bog? Are all afb narrow neck ? or were some larger neck a little later ? I thought afb and Edelbrock the same thing , but obviously not , or there was a change in AFB design ~ 1962 , later ??
> Or I am just lucky and some kind of marine carb landed on my 383?
> comments welcome …
> john G
>
>
>
>
> Sent from my iPhone

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