Many and varied I know but there is a 2110 1-5/32" holley that came out in the '50s with both the three and four bolt base. I believe this is the largest venturi size made from the "94" family. Right? Question is, what are the differences between this carb ( with the four bolt base )and the "bug spray" carb popular with the vw crowd in the '80s? Jetting I expect but are there any other differences? And what is the cfm rating of the 1-5/32? I've been running 3 2100 1-1/16 carbs with a progressive linkage for a number of years but recently came upon a 1-5/32 2110 I'm thinking of using as the primary. I know the base is different and the throttle plates are much larger than the manifold but I'm pretty sure I can overcome that problem with a chunk of aluminum and a mill. There's a lot of info out there but I can't find anything that actually compares the two carbs. Anyone been there and done that? Looking for some advice here.
Its just 3/32" bigger, same parts as the 2100 and 94, (I doubt you will notice any difference) If it has the choke parts, it can be converted to electric choke.
I'm just starting to dig up information on post-flathead relatives of the old 94. The basic design grew a bit in '54 with the EU types, then with the EC types in '55-6 they went to the bigger throttles and also to the new nozzle bars with the secondary venturi rings replacing the "High Lift" bars of '52-4. There were changes in float level and of course jet sizes along with growth of the bore size... There were several versions of each of these Ford ones, but I think they were just choke and linkage changes for the various car and truck applications. There were SEVERAL 2110 types used on big Nonford trucks, including GMC, Reo, and IHC applications. Loooong ago someone in the last flathead stock car racing league at Danbury, Connecticut told me that the biggest known version was the IHC, which could be made to fit the stock appearance rules. These truck carbs are almost unrecognizable as part of the extended 94 family because only the center casting looks right...they have strange, lumpy bases containing a variety of integral governors, and cast-iron lids in several types that also look nothing like a 94. The IHC I once examined also had some mis-leads...the center section showed it to be a Ford 21-29 carb ('42-6), but a glance inside showed large bores and the secondary venturis...obviously Holley was using the external portions of old casting stuff. I may be able to find my way back to that carb, as I know roughly where it appears at Hershey every year. I need to buy it for anatomical study. I think the stock car guys must have been putting the IHC center onto an ECG base and normal 94 lid to make it all usable. They also cut out the insides of the manifolds to make a 360 intake, effectively making the carbs they could use "look" bigger to their engines. I have a LOT of specs from various Holley pamphlets and from a book covering a bunch of very different carbs of this family as used by the military in the 1950's, but sorting is going to be slow and painful. The book is organized by Holley numbers without direct cross-ref to applications, and many of THOSE numbers don't seem to be in Holley pubs that refer to OEM of the time period. The book does cover a bunch, from plain vanilla F series 94's to weird mutated heavy truck versions. Finding information on oddities like the bug spray (and the REALLY odd "buggy spray", apparently Mercury based) is going to be hard. The MANY hotrod industry books on Holley carbs almost entirely ignore everything except 4150 relatives, but one of them did very briefly cover the bug one. I'm pretty sure it was a 2110, but I think with something strange done to the power valve because of the 4 cylinder pulsing. Don't remember enough.
Thank you very much Bruce, I've been hard pressed to find any info on these. I see the throttle plates on these are considerably larger then those on any of the other 94's as you mentioned. I understand they were original equipment on the 1956 Ford Customline with either the 272 or the 292 engine as well as Ford trucks around the same time. Perhaps someone familiar with this engine could shed a light.
When messing with any of these later or bigger than '51 Ford, be sure to get a reliable guide to float level and jet sizes as things kept changing... The big plates are also offset outward a bit, and of course really need the manifold hogged out a bit to take advantage. In the '55-60 time period, the newer four barrels and dual quad rigs were just starting to catch on, and I have found articles (including some with info from Edelbrock) saying that 3-2 rigs were still pulling the best results even with less venturi area than the 2-4's. HRM published some articles (I'm thinking especially of their '55-6 dyno article sorting out the new Chevy) and I think some of these used EC's...they mentioned pickup truck ones, possibly to get rid of the automatic choke and transmission bits on the passenger EC. Triple carb rigs were still evolving at this time, since triple 97's were getting to be too small for the new engines and so the later post-94's and some Mopar Carters were used... On the EC's I think I have stock jet and float level info but not much else. I would suggest you start with the '56 Ford stuff, and see what turns up in the big truck versions!
i've seen two 2110s used on a flathead but the big drawback (especially in colder climates) was the lack of a choke.
The 2100's I'm using are very cold blooded also with a progressive set up and a manual choke on the center one. The 2110 I found is nos in the box and of course the larger venturi. I've decided to go with a 4x3 bolt adapter in the center and try it with my existing 2 end carburetors. I suppose I could always go to rochesters for more cfm but I'm more interested in trying this. Thanks for the input.
I've just purchased 3 94 carbs 2110 1 1/16 " one is nos with the holley logo the other two have a ford logo . I plan to use these on an 8ba l am building 286 cubes . All 3 have electric chokes . Any suggestions would be greatly appreciated. I plan to remove the chokes run 47 jets ? Not sure if to block off power valves ? I was thinking of running 2 as primaries. Anyone have any ideas.
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