I'm looking to invest in a set of Holley 94 or Stromberg 97s and a Vintage Speed 2x2 adapter which mates them to a modern 4 barrel intake for a sbf. I'm leaning toward the Holley 94 for $$ reasons. While searching this site, epay, google etc its obvious there are many models of 94s. I'm hoping someone can assist me with the following questions before I spend the bucks: 1. Anyone know a good reference website that explains the various models, ie 8AB, 2100 etc? 2. What is meant by a matched set, just same model numbers? 3. Anybody running this 2x2 adapter or know of problems with this setup? Thanks sorry for the noob questions, gotta start somewhere...
Can't answer all your questions but I would opt for the 97's over the 94's as I think you will have less trouble with them. Seems to be a lot of trouble with the 94 power valves.
I have 3 94's. They are not on a running motor yet, so I can't give much on that end... Here's some info on them: How to rebuild: http://www.streetrodderweb.com/tech/...tor/index.html Read up on how to run multiples. It might just not be a simple bolt on and go. http://www.flatheadv8.org/286holley.htm Specifications: http://www.flatheadv8.org/holley94.htm I bought re-build kits at NAPA, but they are common everywhere... Good Luck with your choice... Jay
Hey 53. I'm sure not an "expert" but can pass on a little 94 info from my experiences that might help out. I would suggest looking for 94 holleys that have a "59" marking on the side and as original & unmolested as possible. These are from the 46-48 flathead era and have no port for vacumn to the distributor. They are the easiest to use IMHO than any of the other 94s and rebuild kits are readily available. A matched set would be "59s" with all the same internal parts as there were small changes in these carbs. Many of the carbs you find at swap meets have internal parts from other models as a result of modifications/repairs over the years which will cause problems - ask me how I know. I would then use 49 or 50 jets in both (depending on your Texas elevation) and no more than 3.5 power valves. The problems with the setup you are interested in depend if you running them simultaneously or progressively. IMO Its easier to set up if you use a progressive system where they act like a four barrel - running on one till you kick in the other two barrels. Check the early V8 forum section of www.Fordbarn.com and search for Holley 94s - there is a ton of info there. A good source for parts and knowledge is Ken Isidore who posts on fordbarn nearly every day. He also will do a great overhaul on your carbs. Best of luck and hope this helps a little Bill
I have a pair of rebuilt 94s on a Fel-pro adapter, no problems other than just correcting A/F mixtures and float levels. After thats was settled i was very pleased with the result.
Looks like I could give you the same answer here as on the FTE board. Carl used to hang here. I see that one of the links is to his article. Do yourself a favor and read it. Let me say again... ditch the 2x2 idea. It wasn't good back then and it's not good now... even if it was built in India! himmelberg
I have 2 94's on my flathead and had problems with the power valves until I went to www.vintagespeed.com . It seems that the power valves in most of the newer rebuild kits dont seat the same way as the older ones (power valves are still used in newer carbs). Caused alot of frustration and bad language on my part until I found this site and got the correct valves. 94's flow better are alot cheaper and easier to find.Good luck
The 94s work very well when they are set up correctly. Set them up as if they would be run as a single carb, then pair them up and check for correct jetting (checking plug color). You will hear a lot of old wives tales that you need to plug the power valve, need smaller jets, etc. A lot of BS. If your engine vacuum runs on the lower side with the two carbs, you may need to go one or two numbers smaller on the power valve. You might need to go a little larger on the jets, also. It will run nearly perfect with the stock PV and jets. The modern power valves are larger diameter at the top, and can rub on the side of the float bowl. Look inside the bowl after the valve is installed, and see that there is clearance. If it is contacting the side of the bowl, take a dremel and relieve the float bowl so the valve has clearance. If it hangs on the side of the bowl, the valve won't seat, and you will get an over-rich condition.
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