Inliners International Forums General Discussion Engines Another multi-carb question

I'm helping my girlfriend put together a 51 Chevy. We're installing a '60 235 with a 3spd trans, split exhaust and 2x1 Offy intake.

What I'm not sure about is the carbs. After spending a year collecting enough Carter W-1s to make one good pair for my own project, I'm hesitant to send her down that road. It sounds like Rochester Bs require some modification and have a tendency to leak. and so on. Zeniths may be as hard to work wth as the Carters. Carter YF?

I'm thinking a newer carb may be a good idea. Someone here reccommended a Rochester Monojet. What did they come on? Will they fit a Offy 2x1 intake?

I sent Langdon an email about his 2bbl carbs. I don't know the difference or advantage of one over the other, but he has Carter-Weber and Holley-Weber 2bbl carbs. would two 2bbl carbs be too much for a 235? Would I need to change the cam? What about gas mileage?

What about other 2bbl carbs, like ROchester 2GC that came on 57-64(?) v8 Chevys?

The car will not be a daily driver, show queen, nor race car. She just wants a reliable runner that she can drive when she wants and enjoy relatively worry-free.

Your opinions are welcome

i have two of Langdon's Holley Webers on a 320 cid GMC, where they may be not quite enough, but at a total of 400 cfm they would be a bit much for a mild 235. One might be just about right, and less grief to maintain.

On the other hand, if you really want the look and and feel . . . and aggravation . . . of two carburetors, you might talk to Jon Hardgrove at the Carburetor Shop

http://www.thecarburetorshop.com/index.htm

in Missouri. He sells an assortment of single-venturi carburetors (including some NOS Carter WA-1s for Hudson Twin-H Power; very expensive). Mr Hardgrove is one of the more knowledgeable people i've heard on the subject of carburetors, and he will talk to you about your application and tell you how to set them up.

God's Peace to you.

d
Inliner #1450

Hellfish, I just went through a bucket full of single-barrel carbs on my 181 ci Mercruiser/Chevy II 4-banger powered Model A. Over a period of a year, I tried three small Falcon single barrel Hollies, two Carter W-1s and YFs, two Rochester Bs and even a pair of borrowed Zeniths. I really wanted the "nostalgic" look.

But, I'm here to tell you that I ended up with two of Tom Langdon's Carter-Webbers with electric chokes. Nothing I tried had the driveability, performance, or power of of these carbs. (which can be found on '83 Escorts, by the way)

I've met a couple of guys with three of these carbs on Chevy and GMC sixes and their comments have all been positive. Can't beat proven performance!

I've seen these carbs in junk yards for $10.00 to 25.00! Of course, you'd probabl;y have to go thriough 'em. I got new'uns from Tom, bolted them on my home-made intake and have been happy ever since!

If you want a photo, e-mail me at............. drh@digital-link.net

Hellfish: Are you using original 3 speed with torque tube set up or have you converted to open drive? Thxs, sherman

I am using three of Tom Langdon's Holley/Webers with the electric chokes on my 292. Like the previous post have said, they are virtually trouble free once set up. After tuning and adjustments, they have been the best bang for your buck I've ever experianced. If you are running a 235, I would only use one H/W or 2-3 single barrel Rochesters. I had twin W-1's on my original 216 and it ran like a demon!

RapRap
1940 ChoppedChevyCoupe

RapRap... is "running like a demon" a good thing or a bad thing?

What's the advantage of an electric choke over a manual? The car was set up with manual choke.

Sherman... I'm pretty sure it's a torque tube, but your question made me realize that I never actually looked! I ran the numbers and the motor is definitely a 58-60 235, but I'm not sure of the year of the trans. Why?

I posed the same question to Tom and he said "The dual Carter Webers are much more appropriate for the 235 because they have very small primaries designed for an engine have the size of a
235: -Therefore two are perfect for your engine. (There are progressive 2
BBLS). No cam change is required.

Two one barrel carbs would sacrifice drivability if they were traditional size or sacrifice power if you could find some small ones."

C-Ws are sounding more and more like THE way to go for this car. I'll have to re-open this topic when I get around to building my hot 261. It will be built with 100% pre-1960 parts, so C-Ws are out.

Hellfish:

Just wondering how you are setup with the later engine - if you still have the torque tube, then you will have the original tranny. I'm going to install a 62 in my 51 sedan and want to use an open drive train with a later manual trans. If you have an open drive line, I'd be curious how it was done. Thxs, Sherman

I think the previous owner bolted an old torque tube tranny to the later motor. If you want a later trans, there are plenty of posts on the topic. You need a new rear end and an new drive shaft.

Back to the topic at hand... Just curious, would other 2bbl carbs work, like a Rochester 2GC from a v8?

Running like a demon is a GOOD thing!

Hellfish,
The "magic" to the Holley-Webber or Carter-Webber is that they are progressive 2bbls. with small primarys. Other carbs like the Rochester 2bbl. are not progressive. Both barrels will be opening at the same time which will result in poor fuel metering and a soft throttle response. Tom won't steer you wrong!!

Hellfish, I don't think you will have a problem with 2 c/w's. Heres a comparison of a carter 1 bbl with the weber. I have discussed this issue with Langdon more than once and will be using 3 c/w's on my 225. You will need the adapter to mate to your intake. Click images for larger view
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i just pict up two weber 34 ict carbs. to run on my 226 ford flat six. everyone that i have talked to about these seemed to like them a bunch! so i'm going to give them a try.