Y block newb carb question


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By vntgtrk - 12 Years Ago
Howdy. I'm new to y blocks and have a few questions. The vehicle in question is a '59 F100 with a T98 and 3.50 gears. I pulled the trigger on a reman 292 and opted for a '265' cam. I will be running ram horn exhaust into an h pipe, Smithy's and exiting in front of the rear wheels. Will an Autolite 2100 with 1.23 venturis be enough (3.54CFM?) or should I go with a Holley 500 2V? Don't suggest a 4V, don't wanna go that way. Money just isn't there for an intake manifold and carb right now. Plus I want something a bit different. BTW I have the 1.23 Autolite from my younger days when I tried it on a 302 and I know it's good

Also, anybody try the Crane electronic ignition conversion pkg? Good price considering it also includes the right coil

Thanks in advance
By RB - 12 Years Ago
The Autolite will be a good choice.. Holley 500s tend to be set up for performance applications and so do not deliver as good mileage.. The Autolite will be more trouble free as well.
By vntgtrk - 12 Years Ago
RB (9/20/2013)
The Autolite will be a good choice.. Holley 500s tend to be set up for performance applications and so do not deliver as good mileage.. The Autolite will be more trouble free as well.


Think it will be big enough for this setup? I hope so, because I'm well aware of the reliability and economy of these 2100's. I'll be using this thing for a daily driver and a hauler for my 19ft 5th wheel and on occasion my brother's 23ft boat
By gekko13 - 12 Years Ago
IMO, it is more than "adequate" for your application. Note also, that a "1.08" 4100 for example, will actually deliver a bit more power AND fuel economy as well. Save your money and get an aluminum intake and 4100 when finances permit.
By vntgtrk - 12 Years Ago
gekko13 (9/20/2013)
IMO, it is more than "adequate" for your application. Note also, that a "1.08" 4100 for example, will actually deliver a bit more power AND fuel economy as well. Save your money and get an aluminum intake and 4100 when finances permit.


Those are a dime a dozen @ pull and save. The 265 cam and free flowing exhaust shouldn't make a 1.08 starve? No other mods BTW
By PF Arcand - 12 Years Ago
Note that all Autolite 4100s are not the same. The 1.08 models would be best for your application. And apparently some later ones are specific to anti smog setups, and may not be recommended. I'm informed that while those carbs are very reliable & economical, it's important to use a good fuel filter with them.. their annular fuel discharge design, does not like dirt!
By vntgtrk - 12 Years Ago
PF Arcand (9/21/2013)
Note that all Autolite 4100s are not the same. The 1.08 models would be best for your application. And apparently some later ones are specific to anti smog setups, and may not be recommended. I'm informed that while those carbs are very reliable & economical, it's important to use a good fuel filter with them.. their annular fuel discharge design, does not like dirt!


Good stuff to know, thanks. Most of the carbs at pull and save are of the smog variety. But I can look into taking the venturi block out of one and put it in mine, which has a port for vacuum advance and nuttin' else. I'm also considering two fuel filters. One in front and one in back of an electric fuel pump.

Changing fuel and air filters once a year regardless is a habit I've been in since my father taught me that