Offenhauser 2X1 question
Elder User
Joined: Jun 2011
Posts: 940
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From: Illinois
Did you ever install the carbs? 2x1? I'm gathering parts now to do the same offy with (2) 1904s and was looking for knowledge.
Lead Driver
Joined: Dec 2004
Posts: 7,669
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From: San Jose, CA
Yup. Nothing but trouble. Could never get the rebuilt carbs to sink correctly. I have more power and stability with the single 1904. Besides the Offy looking pretty with the dual glass bowl carbs, it's nothing but trouble. At least that's how it was for me. I've seen others run the same set up without any issues. Maybe they got lucky.
Elder User
Joined: Jun 2011
Posts: 940
Likes: 4
From: Illinois
Yup. Nothing but trouble. Could never get the rebuilt carbs to sink correctly. I have more power and stability with the single 1904. Besides the Offy looking pretty with the dual glass bowl carbs, it's nothing but trouble. At least that's how it was for me. I've seen others run the same set up without any issues. Maybe they got lucky.
Fleet Owner
Joined: Jul 2004
Posts: 27,300
Likes: 1,059
From: NM
You absolutely need to get a non-load-a-matic distributor for a dual carb setup. There are lots of guys who have run a Clifford manifold on the 223's, 300's etc with good enough results (if you can keep the carbs from leaking etc).
Elder User
Joined: Jun 2011
Posts: 940
Likes: 4
From: Illinois
Any recommendations?
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Elder User
Joined: Dec 2007
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IMO this is the best dist to use when getting away from loadomatic.
Duraspark is durable and there's a bazillion of 'em on 240/300's in the junk yards. You may or may not need to have the stock 223 dist gear opened up to fit the stock duraspark shaft and you may or may not need to have the duraspark oil pump shaft milled down to fit the oil pump.
There are quite a few resources on the interwebz that explain the process, some of them right here @ FTE
Fleet Owner
Joined: Jul 2004
Posts: 27,300
Likes: 1,059
From: NM
For a distributor? I'd see if Bubba's can retrofit yours to have mechanical and vacuum advance, Bubba's Hot Rod Shop - 1330 Main St., Speedway, IN 46224
I think some later ('60's) 223's also had that kind of distributor, with points. Would be OK with points or a Pertronix retrofit.
Edit: Vntgtrk has the better idea, I'm not a 6-cyl guy....
I think some later ('60's) 223's also had that kind of distributor, with points. Would be OK with points or a Pertronix retrofit.
Edit: Vntgtrk has the better idea, I'm not a 6-cyl guy....
Elder User
Joined: Jun 2011
Posts: 940
Likes: 4
From: Illinois
For a distributor? I'd see if Bubba's can retrofit yours to have mechanical and vacuum advance, Bubba's Hot Rod Shop - 1330 Main St., Speedway, IN 46224
I think some later ('60's) 223's also had that kind of distributor, with points. Would be OK with points or a Pertronix retrofit.
Edit: Vntgtrk has the better idea, I'm not a 6-cyl guy....
I think some later ('60's) 223's also had that kind of distributor, with points. Would be OK with points or a Pertronix retrofit.
Edit: Vntgtrk has the better idea, I'm not a 6-cyl guy....
1960 F100 223
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Elder User
Joined: Dec 2007
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To sense the load of the engine, the manifold vacuum signal is used
I don't think it matters that the vacuum signal on yours is coming from the manifold as this article on load-o-matic explains. Manifold vacuum is manifold vacuum regardless if it's coming from the base of the carb or the manifold. Here's a pic of an 1100 with a load-o-matic can.
<a href="http://s689.photobucket.com/user/vntgfrd/media/five%20niner/Carb1VLOM.jpg.html" target="_blank"><img src="http://i689.photobucket.com/albums/vv257/vntgfrd/five%20niner/Carb1VLOM.jpg" border="0" alt=" photo Carb1VLOM.jpg"/></a>
BTW I swear by the 1100 on inline sixes. I did some minor mods to make it work on the 223. You can just plug the port where the can lives and all is good. I just heard from the guy who bought my 223. He says it's running really well and has plenty of power. Damn, shoulda just dropped it in my fridge
Fleet Owner
Joined: Jul 2004
Posts: 27,300
Likes: 1,059
From: NM
Unless the LoM system on the 6's is totally different than the V8 systems, then it would very much matter where the vacuum is connected. To quote from the linked page:
"The amount of vacuum that the Load O Matic works with is very low, compared to a conventional distributor's vacuum signal. Since this signal is used to provide both the load and rpm of the engine, you can see that when you swap a regular carburetor on a Load O Matic equipped Y Block, the manifold vacuum signal will NOT provide the right information to the Load O Matic. "
"The amount of vacuum that the Load O Matic works with is very low, compared to a conventional distributor's vacuum signal. Since this signal is used to provide both the load and rpm of the engine, you can see that when you swap a regular carburetor on a Load O Matic equipped Y Block, the manifold vacuum signal will NOT provide the right information to the Load O Matic. "
Elder User
Joined: Jun 2011
Posts: 940
Likes: 4
From: Illinois
Unless the LoM system on the 6's is totally different than the V8 systems, then it would very much matter where the vacuum is connected. To quote from the linked page:
"The amount of vacuum that the Load O Matic works with is very low, compared to a conventional distributor's vacuum signal. Since this signal is used to provide both the load and rpm of the engine, you can see that when you swap a regular carburetor on a Load O Matic equipped Y Block, the manifold vacuum signal will NOT provide the right information to the Load O Matic. "
"The amount of vacuum that the Load O Matic works with is very low, compared to a conventional distributor's vacuum signal. Since this signal is used to provide both the load and rpm of the engine, you can see that when you swap a regular carburetor on a Load O Matic equipped Y Block, the manifold vacuum signal will NOT provide the right information to the Load O Matic. "
Elder User
Joined: Jun 2011
Posts: 940
Likes: 4
From: Illinois
How the Holley Load O Matic Distributor Works
I don't think it matters that the vacuum signal on yours is coming from the manifold as this article on load-o-matic explains. Manifold vacuum is manifold vacuum regardless if it's coming from the base of the carb or the manifold. Here's a pic of an 1100 with a load-o-matic can.
<a href="http://s689.photobucket.com/user/vntgfrd/media/five%20niner/Carb1VLOM.jpg.html" target="_blank"><img src="http://i689.photobucket.com/albums/vv257/vntgfrd/five%20niner/Carb1VLOM.jpg" border="0" alt=" photo Carb1VLOM.jpg"/></a>
BTW I swear by the 1100 on inline sixes. I did some minor mods to make it work on the 223. You can just plug the port where the can lives and all is good. I just heard from the guy who bought my 223. He says it's running really well and has plenty of power. Damn, shoulda just dropped it in my fridge
I don't think it matters that the vacuum signal on yours is coming from the manifold as this article on load-o-matic explains. Manifold vacuum is manifold vacuum regardless if it's coming from the base of the carb or the manifold. Here's a pic of an 1100 with a load-o-matic can.
<a href="http://s689.photobucket.com/user/vntgfrd/media/five%20niner/Carb1VLOM.jpg.html" target="_blank"><img src="http://i689.photobucket.com/albums/vv257/vntgfrd/five%20niner/Carb1VLOM.jpg" border="0" alt=" photo Carb1VLOM.jpg"/></a>
BTW I swear by the 1100 on inline sixes. I did some minor mods to make it work on the 223. You can just plug the port where the can lives and all is good. I just heard from the guy who bought my 223. He says it's running really well and has plenty of power. Damn, shoulda just dropped it in my fridge
I don't recall anything like that on my 1904. I'll go look tomorrow.