<VV> two two-barrels

[Ray]

Actually,  the original Varajets , as used on the 2.5 and 2,8 chevys starting in 1979 , 
were not computer controlled. 

. 


Rcs

On Mar 20, 2013, at 4:11 PM, jvhroberts at aol.com wrote:

> 
> The most popular two stage two barrel out there is the Holley/Weber 5200. The largest Weber progressive two barrel is the 32/36D series, available with electric chokes and left/right hand linkage versions! 
> 
> The Rochester you're talking about was used on the carb'd 2.8L Chevy V6. An interesting carb, but the mods you'd need to eliminate the computer controlled A/F adjust, etc., may be fairly challenging, but I also speak from near zero experience on this carb, so...
> 
> 
> 
> John Roberts
> 
> 
> 
> 
> -----Original Message-----
> From: Joel McGregor <joel at joelsplace.com>
> To: virtualvairs <virtualvairs at corvair.org>
> Sent: Wed, Mar 20, 2013 12:00 pm
> Subject: Re: <VV> two two-barrels
> 
> 
> Fuel injection is the way to go but if you are looking at carbs a more 
> sophisticated one would be the 1/2 Quadrajet.  I can't remember what it's 
> called.  They made them 2 ways.  One was the front two small barrels and one was 
> split the other way.  It had a small first and a vacuum operated huge 2nd.  I've 
> only seen one made this way and it was in a pile of carbs at a scrap yard.  Does 
> anyone know what they came on?
> I had or may still have a center mount 2 barrel manifold for non-140 engines 
> that came with a 2CG on it.  I don't know the history of it.
> Joel McGregor
> 
> ________________________________________
> From: virtualvairs-bounces at corvair.org [virtualvairs-bounces at corvair.org] on 
> behalf of jwcorvair at aol.com [jwcorvair at aol.com]
> Subject: Re: <VV> two two-barrels
> 
> True, even old efi systems can work much better than carbs, particularly in a 
> system where the carbs are old and were not originally intended for performance. 
> These carbs are not much more sophisticated than our HVs, two throats instead of 
> one. These carbs were pretty common on quite a few GM vehicles, everything from 
> Vegas to Firebirds - just about anything that had a small engine requiring 
> minimal carburation. Several sites offer information about tuning the 2CGs for 
> racing, which is not the same as for the street. The ubiquitous nature of these 
> carbs got me wondering if anyone had played with them.
> 
> Now, back to our regularly scheduled thread about anitsneeze.
> 
> Joe
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