how about the Sumit m08600va 600 cfm carb.  any thoughts?

I have a new Holley 1850 (600 CFM) that worked great out of the box on mine.  Supposedly a '59 vintage.  Spark plugs look nice so I didn't even need to mess with jetting.  

Here’s the link to a past thread which may prove to be helpful.
Carburetor Sizing (y-blocksforever.com)

Lorena, Texas (South of Waco)

For a fairly stock 292, I would suggest the Summit 500VS carb if your engine has hood clearance for a modern air cleaner.  It will not work with a drop base style air filter/cleaner unless you use the 3" filters.  Will not work with the Thunderbird air cleaner.  Joe-JDC

JDC

I bought a refurbished Holley Street Avenger 570 carburetor, but it's still in the box. The Holley refurbished carburetors are carburetors that have been returned to Holley. Often there is nothing wrong with them when they are returned under warranty. Holley inspects them, makes any necessary repairs, and sells them at a significant discount. The refurbished carburetors come with the same warranty and accessories that are included with brand new carburetors. If a refurbished carburetor is not in stock, you can sign up to be notified by Holley when one is available. If I hadn't bought the Street Avenger, I probably would have bought a Summit 500/600 cfm, the latter of which probably will require smaller jets. 

By the way, Ford Performance equips its $10,000 306 crate engine with the Street Avenger 570. 

I've been using Holley Street Avenger carbs for the last 12 years or so.  The first lasted about 10 years, daily driven all year, without any rebuilds or cleanings.

The Summit carburetors work great and provide some higher end features for a very reasonable price.



Lawrenceville, GA

Just want a carburetor for a 1957, 292 ci with a 1957 Distributor, B-manifold and G-heads (I am told-???)  Something that just works well as I use it only for summer fun here in MN. Then store it in a igloo.   I have read many articles and just get confused so figured that those driving them would be a better source.  Thanks in advance.