Although the Weber ADM 34 is specific to the Falcon, there are heaps of parts around. NO off the shelf bits in the US for it unless you are Italian American and have friends at Fiat!.
It is very easy to get parts from Nardek in Australia at
http://www.nardek.com.au/Weber.htm
Everything is stocked, as it has been on sale for over 10 years on Falcon utes from 1982 to 1993.
It uses lots of bits common to other Chryslers (Aussie Centura 2.0 liter has the Weber 34 ADAS carb
Most 1976 onwards Fiat 124
131
132
and Argenta
have the 32 or 34 ADF, or 34 ADFA version.In the US, you can get a full conversion for Weber 34 ADF to 1975-80 Fiat 124 Spider. #3231, about US $545.00.
Speco
http://www.speco.com.au/accair.html in Australia make a cheap air cleaner, # 351643 Weber ADM/ADF.
Redline at
http://www.racetep.com/ramflolynx.html do a 600 Seires #RF6 filter for Fiat 124'S with Weber 32 ADF, barely 2 inches tall.
It will fit the 34 ADM.
If you want the best filter around, it is the # 56-9032
See
http://www.filterpower.co.uk/kn_bolton/fiat.htm
Tricks for the ADM 34 are simple.
The casting has only a small amout of meat in it, since it was designed as a small Chrylser carb. It has tiny 29 mm chokes. What you can do is remove the boosters before having it fly cut out to 30.5 mm, and that will boost its CFM from 320 cfm at 3"Hg to 354 cfm. Thats only 60 thou of bore out. If you break through the casting, just add some JB weld and smooth back out.
The power peak with an ADM 34 is normally about 165 hp tops, but with an extra 10% airflow, you can get up to 180 hp plus without any major work.
There is no benefit from making it a simultanoues carb.The carb is a dedicated set-up with is not ameniable to such a change. If you do that, you should be using a 350 or 500 CFM 2300 series Holley 2-bbl.
The very best thing about the carb is it is so economical and has great jetting and a superb emissions package. The return line, the modern cable, the provision for a proper AOD style kickdown cable, the idle stop solinoid, the electric choke...everything is well sorted out. Ford Australia did a lovelyjob with this carb, and locally imported Fiats with this carb were very economical cars
If you start fooling around with it, make sure it is dyno tuned or you at least buy a proper oxygen sensor and make sure it is tuned right. Webers have a vast array of adjustments, more than Holley carbs, and its easy to get a little muddled.
