About AutoLite Jet sizing..

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Feb 20, 2012 | 05:20 PM

6978sghfbjklgdfsjhkl

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About AutoLite Jet sizing..

Hi there..I am working on a newly acquired "83 F150 351W that originally had on it the feedback 2150a. Ir was long ago removed and in it's place the po had another carb installed that is a mismatch of parts and it's not running well. I have in my possession a late 2100 D2 1.21 Venturi I think I want to put together for this motor. I can't seem to locate a recommended base sea level jet size for this combo. I will operate it on the left coast and average altitude will be about 1500-3500' roughly. Any input would be appreciated..

I also have a great 1.08 Venturi early sixties core as well..(one that takes the Holley jets),,Any thoughts about me jetting this 1.08 for this 351W?...

thanks all

Feb 20, 2012 | 09:20 PM

tbm3fan

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From: Concord, CA

It is my understanding that Ford broke altitude down to 0-5000' and then above. So you would fit their standard jetting based on application. For example my 289/auto has a 1.08 2100 with 49 jets. I have a 390/auto 1.23 2100, in the garage with 55 jets.

Feb 20, 2012 | 09:32 PM

6978sghfbjklgdfsjhkl

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thanks for the input

Quote:

Originally Posted by tbm3fan

I really appreciate the input. I had in my mind about 54's or so for this 1.21. It sound like this 1.21 is what i need to use. I have to decide 2marrow and since these are special order..I will use a couple smaller sizes I already have and just drill them to spec. Again thanks for getting back. I have come to appreciate these 2100's and have enjoyed the in's and outs of these early Ford carbs...

(on edit)..On second thought maybe i should first drill it "52" and then have room for tuning on the same jet...at least it gives a starting point..

Again thanks..

Feb 21, 2012 | 02:10 AM

tbm3fan

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Special order??! Not really if you know where to go such as this place where is bought a whole series of jets.

Autolite & Motorcraft Carburetor Main Jets

Feb 21, 2012 | 06:47 AM

6978sghfbjklgdfsjhkl

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good morning..

Well when I said "special order"..I meant I couldn't go to the local box store and get them.. I've ordered from that source before..but I need these today to stay on track to get this project out of my carport. I appreciate the input though..and I think that link is a great source for carb stuff..especially if you want to get extras of "this" or "that" and don't want a whole kit. I actually priced out the jets from him but I've got a couple of "odd" single jets that I can drill out today once the local tool supply store opens up..they have the individual wire size bits I need for $2.46 each....a lot cheaper and quicker since I need them TODAY..
Thanks for chiming in though..I hope all is well in your world today...I'll probably will look for a manual choke version of this 1.21 or a 1.14 for this F150 in the long run, I have a manual choke 1.02 with the brackets..for another project I'm working on..(at least the "pre" 64 carbs use the Holley jets that I CAN get locally)...again..

I have ordered form this source before as well..

http://www.allcarbs.com/detail.php?p...&ctgn=27&stt=0

have a neat day...

JS

I you hear of a reasonable core in a manual choke early 2100 or even parts (the cable-clamp setup, or even just fuel bowl) let me know..I like these carbs...