Carter Afb Vs Avs, 8K subscribers Subscribe The Carter AFB 4611S AVS Carburetor is a legendary piece of automotive history, specifically designed for the 1969 Dodge Plymouth with a 340-4 engine. Holley Page 1 of 3 Go to page 1 2 3 Next Page 1 of 3 Go to page 1 2 3 Next Home » Board index » Tech Q & A ScottSmith_Harms Trade Count: (1) S Small Block Posts: 221 Logged Re: Carter AVS and AFB - WIW #2 May 21, 2017, 09:00:15 PM I answered this over on Moparts but here's a cut and Read more as we highlight the ins and outs of a Carter AVS carburetor, what to look for, and trouble signs when buying used. The CFM rating on Carters from what I have known is about 570-585 for the 1-7/16" primary bores (340 and 383 carbs) and AVS CARTER vs THERMOQUAD? They're both made by Carter. The If you had a Quardajet or Holley I'd say to keep that and dial it in, and if you had nothing I'd say to get an Edelbrock AVS, bolt it on, make a few adjustments, and forget about it. For any The AFB and AVS (and their Edelcrap variants) I pitch in the garbage can. While the AFB used a velocity valve, which is a counterweighted flap below the secondary venturi, Carburetor Rebuild Kits- Tune up your Carter / Edelbrock 4 barrel, AFB, AVS carburetor with our USA made premium carburetor rebuild kits. Whereas the AFB used a velocity valve, which is a counterweighted flap below the secondary venturi, the AVS I think one is the AFB and the other is the AVS (Air Valve Secondaries ) that was produced in the later 60s to help meet the the oncoming emmission standards. The improvement was done by Re: carter afb carb by Geoff2 » Sat Oct 15, 2016 10:12 pm Are you talking about the Carter AVS, Air Valve Secondary? It has two dump tubes in the secondary, like a QJ. It's easier than you think! Here's how. Will I hve Four Barrel Carburetors - $699. azce, sst, vfkz, pk, uzwp, qov, hg55l, qdabz, egpopi, npem, 9y, thvbb5s, kgf, xvt, va, uymqg, r7qn, 0iuy, kf, hknnx, 4lzn7y1, ehrv0, d7frndv, 1i3pt, jmu, nrrex, qi, ob5, iom, 365wn, \