d510addict Posted April 28, 2011 Report Share Posted April 28, 2011 With the LZ20 getting ready to go together I was wondering what a decent carb would be for it. I currently have a 2 barrel Holley which seems to be from their street series (i've yet to identify it as I cant find a identification num on it) but it has nothing resembling a choke on it which makes starting her up in the AM a PITA (won't idle for several minutes unless the carb is richened up a ton). Been trying to find the choke setup at Pick N Pull but no luck so far. If I were to say try and find a set of SU's what size would be best? What about if I go the Weber route what would be a good one to grab? It will be running an A87 head (been surfaced a bit much so it will be a bit over 9:1 CR) with z20e flattop pistons, basically a stock motor. Would love some input on what would be ideal/budget ~Derick Quote Link to comment
datzenmike Posted April 28, 2011 Report Share Posted April 28, 2011 2bbl Holly? Like from an old 260 Ford Falcon? Too big and both barrels open at the came time so you have to come in lightly and add throttle or it will bog. SUs from an L16 or L18SSS on a Nissan manifold would work. Weber 32/36 can't go wrong, and it fits the stock manifold with an adapter. Quote Link to comment
flatcat19 Posted April 28, 2011 Report Share Posted April 28, 2011 I am curious myself. I just got handed a holley carb, and can't any information on it at all. Mine has an electric choke though. But the mounting base is longer. I'm thinking mine might be from a Toyota 22R? It was a donation to my friend's school. New instructor at the school handed it to him since he has a Datsun. Thought it would work for him. Carb has never been used. Spotless. If someone steps in and says they know something about these I'll go get some oic's. Quote Link to comment
flatcat19 Posted April 28, 2011 Report Share Posted April 28, 2011 Mine is way different. Let me go get some oic's. Quote Link to comment
HRH Posted April 28, 2011 Report Share Posted April 28, 2011 Holly also made a direct copy of the 32/36 back in the day. A little harder to find, don't think the jets interchange. I doubt an early 2bbl holley would be that bad on an L. Just make sure it's a fairly low cfm one. A weber would be better though. Quote Link to comment
flatcat19 Posted April 28, 2011 Report Share Posted April 28, 2011 Holly also made a direct copy of the 32/36 back in the day. A little harder to find, don't think the jets interchange. I doubt an early 2bbl holley would be that bad on an L. Just make sure it's a fairly low cfm one. A weber would be better though. Me personally, I just want to know what it is...Craigslist fodder. I don't think mine will fit a datsun manifold. The length of the base is like a 1/2" longer than the stock mounting location. Quote Link to comment
d510addict Posted April 30, 2011 Author Report Share Posted April 30, 2011 I looked up the list number on my carb Only if I could find the specs of this thing. Its for a engine quite a bit bigger than my L series what do you think, should I replace with a weber or SU's if I can find em? Holley 3485 is specifically designed for 1965 - 1967 Ford, Galaxy, Fairlane, Falcon, Mustang, Comet and Cougar with 289 engine Quote Link to comment
d510addict Posted July 3, 2011 Author Report Share Posted July 3, 2011 I'm bumping this I am in need of a holley expert or a new carb. Need to find info on rebuilt kits/jetting Quote Link to comment
yello620 Posted July 3, 2011 Report Share Posted July 3, 2011 Can you post a pic of the carb? Quote Link to comment
d510addict Posted July 4, 2011 Author Report Share Posted July 4, 2011 http://www.oldcarmanualproject.com/manuals/Carbs/Holley/TypicalViews/pages/2300C.html This is pretty much the carb I have but I cant find any info on it other than this Quote Link to comment
620racer Posted July 4, 2011 Report Share Posted July 4, 2011 racing carb, speedway motors $484.00 Quote Link to comment
d510addict Posted July 4, 2011 Author Report Share Posted July 4, 2011 Where do you see that Quote Link to comment
d510addict Posted July 4, 2011 Author Report Share Posted July 4, 2011 I guess I shiould also mention the list is 3485-(5 or an s) with 704 directly below that Quote Link to comment
ggzilla Posted July 4, 2011 Report Share Posted July 4, 2011 This carb is not ideal. First, it has no peer factor. Second, it is too big. A Holley 5200 would be better (licensed copy of the Weber 32/36). Quote Link to comment
d510addict Posted July 4, 2011 Author Report Share Posted July 4, 2011 I cant even find info in order to properly identify it though. I realize its not ideal but thats what I have and am having trouble finding a different carb. Quote Link to comment
ggzilla Posted July 4, 2011 Report Share Posted July 4, 2011 am having trouble finding a different carb Call Redline at 800-733-2277 and ask for kit K660, good for L20B in Datsun pickup, since you are running the A87 head it will be great! Quote Link to comment
d510addict Posted July 4, 2011 Author Report Share Posted July 4, 2011 K I didn't know I had this (was buried) its a motorcraft do you recognize what it is? Has a tab on it that reads motorcraft D4ZE DC A 3k23 Quote Link to comment
ggzilla Posted July 4, 2011 Report Share Posted July 4, 2011 That is a Holley 5200. They were supplied on many Ford vehicles (Motorcraft) and also on millions of Chevrolets. Both 4 and V6. Mustang V6 had this. It is a licensed copy of Weber 32/36, but usually flows less CFM and uses Holley jets instead of Weber jets. Air cleaner flange is different too. Quote Link to comment
ggzilla Posted July 4, 2011 Report Share Posted July 4, 2011 motorcraft D4ZE is 1974 (D4). Probably off a Mustang 2.3 engine. Quote Link to comment
d510addict Posted July 4, 2011 Author Report Share Posted July 4, 2011 Enough CFM for an l20b you think? or too restrictive? Quote Link to comment
ggzilla Posted July 4, 2011 Report Share Posted July 4, 2011 Sure it's enough. Aboot the same as the stock carburetor. Quote Link to comment
620racer Posted July 4, 2011 Report Share Posted July 4, 2011 I rock a 350 cfm / lz-24. 205hp -160t @ 6700rpm Quote Link to comment
d510addict Posted July 4, 2011 Author Report Share Posted July 4, 2011 Mine will only be partially blueprinted with a mild modded A87 for now, Eventually I'll build my w53 closed chamber up and slap it on. Quote Link to comment
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