When I got my latest “K” it had a new Edelbrock on it. I took it off and put on a correct, rebuilt by myself, AFB. Runs fine. Also, whomever did the Edelbrock never correctly adjusted the kickdown linkage and the trans now runs better as
well.
If you rebuild one, just be sure if the book shows that it had a THREE STEP rod to use one. The car runs much better with new step up rods. Many of the rebuilt units have the wrong rods in them and/or they are worn down on one side.
James
From: chrysler-300-club-international@xxxxxxxxxxxxxxxx <chrysler-300-club-international@xxxxxxxxxxxxxxxx>
On Behalf Of dplotkin
Sent: Sunday, July 30, 2023 14:20
To: John Grady <jkg@xxxxxxxxxxxxxxxxx>; Nick Taylor <nicksgaragesd@xxxxxxxxx>
Cc: chrysler 300 club <chrysler-300-club-international@xxxxxxxxxxxxxxxx>
Subject: Re: {Chrysler 300} AFB carbs / Edelbrock
I was going to say, the AFB is a mechanical secondary carb first introduced in 57.
The AVS came later, I think Mopar was the first to use it. Edelbrock was selling both, I believe the AVS is built from cores while AFB is new.
Sent from my Verizon, Samsung Galaxy smartphone
-------- Original message --------
Date: 7/30/23 4:29 PM (GMT-05:00)
Subject: Re: {Chrysler 300} AFB carbs / Edelbrock
Part right ,Nick ; The original “ Edelbrock “ are AFB based , the newer Edelbrock “thunder series “ are AVS based
The ones in question have nothing to do with AVS , which by the way are supposed to be better .
Edelbrock carbs are based on the Carter AVS (aluminum vacuum secondaries) carburetors. At least on Mopars all AFBs are small throat and base.
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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