Inliners International Forums General Discussion Hi Performance Fenton Dual Carb, 235 - What carbs?

I just picked up a Fenton 235 dual carb manifold. It came witha pair of Rochesters (can't find a number, but have automatic chokes). One carb is pretty well busted up, so I can look at options. What is recommended for carbs?

Dear Faust;

Chokes are seldom used on twin carb set ups.

If your engine is 'stock' the Rochesters will be fine & you have 1 good one already, so your 'half way' there.

Just match it & keep the "busted up" one for parts etc.

Contact Patrick's for linkage, fuel lines and air cleaners.

Good luck & welcome aboard.

boy - you are going to get a lot of recommendations on carbs. Carter, Stromberg, Holley all work well. In my hands I dont like the Rochesters, but others will chime in and give some other opinions.

My suggestion is to buddy up with someone who has had good luck with them and have him over your shoulder as you learn the multiple carb game.

Why no choke? Looking around the web I have seen a couple pictured with heat tubes to the chokes.

go to the tech tips on the left side bar. click on it and then hit multiple rochesters. it will help a bunch.

let me extend an offer to join inliners - you can sign up and be an official card carryin' member by using the left sidebar too - where it says "sign up"

Faust,

Welcome to the Inliners' BB and (we hope) to full Inliners membership.

I really liked the Stromberg BXOV-2 carburetors that came with a McGurk dual-carb manifold that I acquired in 1956. It was very easy for a sixteen year-old kid to install and set up. I ran it with and without chokes. It definitely ran better when cold and started easier with both chokes operating (from a manual push-pull cable). Maybe chokes are not needed in Apple Valley, but they are in Missouri, and probably also in Massachusetts.

I have also run 235s and 261s on the street with a Harper manifold with three Stromberg 97s, and chokes were also a benefit - much easier to start when cold. I currently have five Strombergs (two 97s as primaries and three 48s as secondaries) on a 278 cubic inch 261. There are chokes on the two 97s, and I will soon be adding hot-coolant heat to the bottom of the intake manifold.

Many people seem to like the Carter/Holley Weber carburetors that Tom Langdon and others can provide.

2 smaller 216 carbs respond better and run leaner (better mileage) than 2x 235 carbs on a street 235/261 that stays under 3500 rpm.

I got Carter W-1s on my 235 and the Stromberg/McGurk setup Hoyt mentioned on my 261.
- All 1948 216 carbs.
They never leak like most Rochesters do and are all FUN and no hassles.


Note: Always use exactly matched carbs and carb repair kits and a carb synchronizer tool when going with multi carbs - the closer you get the carbs flowing in sync, the better.
The finest adjustment on the linkage makes a BIG difference. I prefer a small motorcycle carb balancer with scale over the popular but less accurate 'uni-syn' model.

What carbs you pick would generally be a function of your (or your tuner's) "comfort zone" with a specific carburetor.

Choices would include in alphabetic order:

Carter W-1, WA-1, and YF. Stay away from the BB and BBR series.

Holley 1904, 1908, and 1920 series.

Rochester B's and monojets

Stromberg B series

Zenith 28 and 228 series.

(MOO) Ranked in terms of overall quality and performance:

(1) Stromberg and Zenith
(2) Carter
(3) Holley
(4) Rochester

(MOO) Ranked in terms of "user friendliness" (availability, performance/cost, ease of tuning, etc.)

(1) Carter
(2) Stromberg and Zenith
(3) Holley
(4) Rochester

Two Carter W-1's work exceptionally well on a stock to mildly modified 235.

(MOO = my opinion only, others may have differing opinions).

Jon.

Within the various models above, carbs with a mechanical power system are easier to tune than those with a vacuum power system.

If you plan to drive the vehicle in temperatures below 55 degrees F. USE CHOKES ON BOTH! Chokeless carbs are OK for temperatures of 70 degrees or more. Depending on your circumstance, use either choke on both, or choke on neither. This applies to a dual carb set-up. If you are using a triple set-up, with a primary and two secondary carbs, then choke the primary only.

Jon.

Playing with the site this morning trying to search old info. The advanced search feature seems to be set at 10 years so this thread can not be found. This is EXACTLY the kind of information the 20 viewers who were on that forum may have been looking for. I put the thread name on google but did not get a hit except for the same request to Stovebolt by the same poster.

Putting the exact same request here got 600 hits every post of every thread 24 pages back to 2018. This is one reason people don't stick around here. This is the kind of information theycome here for. Especially carbking's responses.

I found it by going to the forum list and selecting "Hi Performance" Going to the Show Topics ( Default is from 1 -6 months on most forums here) clicked on "from all dates" then Sort By skipped "Last Post Time" and clicked on "ascending" and "change". Who but a crazy person would ever find this?

What if you select "from all dates", do they show?

No. There is a 10 year limit.

Date Range

Maximum date range is 10 Year(s).

Newer than
Older than

Hi Beater, we've talked search at length. The in-and-outs of the Advanced Search feature can be found here:
General Forum: Searching Inliners Forums

The Forums software (UBBthreads) is not at all hip to the content that is being hosted on a particular site's forums. In our case we are talking about antique engine technology - so the vintage of a post (New {with in a week of today's date} versus Old {older than say 10 years}) is pretty much irrelevant when it comes to 60 or 70 year old technology. But that is precisely the approach of the Forum's search algorithms given the perspective of the UBB developers' (specifically the time frame of a post matters and recent is somehow better).

But you and I both know that the voices posting here back in the early 2000's are just as knowledgeable as those posting today. That is why my search tips write up recommends removing the posting date gates ENTIRELY and simply performing a positive key word search: "+dual +Fenton +235 +carb"

This yields just 61 posts from '04 to the current day where you 'bumped' the Faust post from '07 including carbking's response - which memory told you was certainly here.

regards,
stock49

Thanks, I'll read that again and give it another try. I appreciate your help and patience.

OK! Read through it again and it made sense to me. I was able to find some old posts back to 2007 with content I was looking for. I had not understood how to use the Newer Than & Older Than boxes. I did not know there was a a blank choice in Newer Than. I did not understand + _ * in a search. It took some bumbling and head banging in the past before your written instructions connected this time. It all has to do with my limited computer skills. I am confident now that I can find old info that I know is here. I know I can get past the newest 600 posts, and I know how to narrow my search to find very close to what I'm liking for.
Thanks for helping me!!