Holley Progressive Two Barrel Carb.

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/6 Matt

/6 Matt

30 Degrees Crooked
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So, I was talking to my instructor after automotive one day last week about fabricating a kickdown linkage so I can finally get my old Carter 318 BBD on the slant. We got talking about carbs and he told me he had two Holley (can't remember the number, I check tommorrow) progressive carbs for the little Ford 4-bangers. I got to looking at them and they were excellent cores, one even had the electric choke on it! $25 bucks for which ever one I choose. I got to looking though and we both noticed at the same time that they were something else entirely like Autolite or Motorcraft or something like that. He said it was pretty much an exact copy of the Holley... 5048 rings a bell. Again, I got to check on the number. He showed me a picture of it's Holley counterpart and they looked EXACTLY alike. He gave me a cardboard gasket to bring home and check on the Super Six manifold and... It didn't match. But it was close, horribly close. Enough to make me consider some drilling and grinding, which I ended up deciding against. Wageli says he has a couple ways he might could modify the manifold, but I should first check to see if there is an adapter plate out there. So here I am... Does anyone know of an adapter plate out there somewhere to do it? Where do I buy one? If it comes down to it, I jumped on AutoCAD and designed my own adapter plate in drafting today. It's only 1-1/2" tall and I can get a machinist to make it if I find a block of aluminum.

Thanks in advance,
/6 Matt
 
Again, this is a PROGRESSIVE style carb, not synchronous. Hence the reason I'm considering it over the Carter which has the same overall flow rate.
 
Nice idea IMO.

If you can find a thick peice of steel to cut and riull for your own adapter.........
 
I had a friend that fashioned one on a 1.8 litre in a Opel and it flew. It originally had a Solex 2 barrell.
 
I wonder if they are the same as the Holley 500? There is an adapter for that application. Might could use that.
 
Tuning that carb is like programming a NASA flight plan... EVEN WITH A WIDEBAND O2 METER...
 
It might be worth monkeying with IF you had a stack of them, and lots of time. But these carbs have been around for a long time. Pretty sure if they were such a hot swap, there would be a bigger knowledge base by now. Two issues I see right off:

1. The carb was designed for a 2.3L engine and you are adapting to a 3.7L. The OEM application produced similar or lower HP figures than the slant. Are you sure they flow the same? Compare venturri area, not throttle bore size. Also, most of the Pinto guys fitted larger carbs in their quest for more power, typically a 2100 Motorcraft or 2500 Holley.

2. Aftermarket support is zero, and parts will be a hassle. You'll be drilling your own jets, etc... If you have a bunch of core carbs, go for it.

The idea of a progressive 2bbl make a lot of sense for both throttle response and economy. If it were me however I might start out with something a bit more common and supported like a 36/36 DGV Weber. Call Redline, something similar to their 4.2L Jeep kits might work better.
 
"2. Aftermarket support is zero, and parts will be a hassle. You'll be drilling your own jets, etc... If you have a bunch of core carbs, go for it."


Weber jets fit, but like I said tuning is a royal PIA...
 
I would go with a carb that would augment the performance of your car, unless you like to experiment and learn.
That carb sounds too small for yours and would defeat the purpose of having a 2 bbl on your /6.
 
One is too small. A few people have done 2 or 3 of the little guys. Do a search.

Multiple carbs that are notorious for being hard to tune by themselves doesn't sound like a whole lot of fun.
 
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