what are the differences between the different model number holley 94 carbs?...i'm running a dual intake on a 50 8ba and was wondering if i could run a 59a and an 8ba carb together?...i heard they are easier to tune if they match...thanks for any input....george
It is one of two things, I think. Either the venturi size or the jet size. I believe it is venturi size because jet sizes can be changed. I would think that running two of the same type of carb would be much easier to set-up and tune. And should run better on a 2x2 set-up. Why did I respond to this if I do not know for sure? I must need a beer to straighten myself out...
the different carbs have different venturi sizes... 7/8th, 15/16th's, 1 1/16ths. That is about it.. but what do i know..i hump garbage cans...
8BA has the vacuum pick up. The other are pre '48 (21-29/59A). 59A is 46-48. Macs autoparts catalog has a very good ID site for carbs. If somebody can scan this. I don't find mine.
I've got exactly two 94 carbs at home. They are both in great shape but they are mismatched and obviously I'd like matching carbs to go on my 2x2. I'll take a look over the weekend and post what I have and what I need. Maybe we can get some sort of carb swap/exchange program going and get some matched sets going? I know Lukester was looking for this sort of deal to get his truck running at some point.
i was trying to use both of these cause they are chrome...i'll look to see what other numbers i have...i'd be into the swap...what are the best number ones to use on a multi carb set up?
[ QUOTE ] HA! I was right! Venturi size. 45 RPM would be a single and 33 RPM would be an album. Huh? [/ QUOTE ] Who said?
I'll let you know exactly what I have Monday then. "Best" carbs might depend on engine size? I know next to nothing about 94's since I'm holding out hoping I'll stumble accross a stray 97 or two....
I don't know if you've looked at the vintagespeed web site. He has some history of the 97's and 94's under "carbs and fuel systems" toward the bottom of the main page, scroll down. Interesting read.
the different carbs have different venturi sizes... 7/8th, 15/16th's, 1 1/16ths. That is about it.. but what do i know..i hump garbage cans... You better stay with the day job then, at least garbage can humping might help your psyche ALL 94 carbs have the SAME .094" venturi, that's why they are called 94's. DUH. All the 1938 thru 53 221/239/255 inch engines (54 in Canada and Down Under) carbs have the 94 venturi. The pre 8BA do not have a venturi vacuum port and they have extended throttle shafts for use with a hand throttle. The 8BA have that venturi port and only trucks had hand throttles so if you want to run duals with the good drivers side linkage you have to find trucks or build them up. Many, but not all, parts are interchangable over the years. The OEM version is the Holley 2100. Altho you can run duals with the stock 8BA dizzy it is a real compromise. Save up your money and get a good ignition and then plug those venturi ports. When the OHV Y block came out the carb got 1 & 1 1/16" venturies. Although an extension of the 94 family they are actually an OEM build of the Holley 2110. These also have spark arrestor valves in the cast iron base. These can be used if you remove the valve and plug the hole. Others in the Ford family are the Lincoln LZ, the V8-60 92. Holley had a few others available aftermarket well into the 70's, including VW Bug Squirters. Ive read that there are 17 varieties; probably have seen 14-15 of them. Stromberg and Bendix built their own replacement versions. When working with the later years 94's there are standard and hi lift nozzle bar versions. Dont mix them on multi carb setups. The pre 8BA versions went thru several minor internal changes as the design improved. There are even some 8BA era differences which is why I always suggest using matching casting ID's and build them identical. Those who cant seem to get duals running usually miss some basics and then do something silly like plug the power valve or use strange jet sizes. I'd scan in a Ford Shop Manual carb breakdown but graphics dont hang around long on here. The 94 is not a hard carb to understand, it's an easy rebuild and is an effecient design. Lots of design commonality even with much later Holleys
what are the best number ones to use on a multi carb set up? No particular "best" that I have found. Maybe the older ones have another 10+ years of hard life behind them. The 8BA era flow a tiny bit better than previous and the bigger Y flow up to almost 200cfm. But the max between any era Ford is about 40-50 cfm, no big deal on a driver. Bottom line is the size of your engine and cam as well as what you can find. I run dual ECG-5's on my 286. The Y has a ECG-5 in the center and 59's on the ends.
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