Which ford should i take a motorcraft from?

[Jeepster05]

Motor Vac

I've got this guy with 300+ motorcraft carbs in good condition and I need to know what carb I should get a 2150 or 2100 and off of what model ford? I have a 90 YJ witha 258. What are the specs on the one I should get?

 

[Tug-n-pull]

2150 off a Pinto will work just right! Look for the 1.08 mark if memory serves. tug

 

[Jeepster05]

What's the CFM on that one?

 

[jeep90]

tug didnt you get the 1.21? if you get one from a 1975 jeep wagoneer with a two bbl 360 it will be the 1.08 size, but it will not have an automatic choke that you can use. it will have a choke that works off of exhaust heat. i am using a manual choke and it works fine. Tug did yours come with an electric choke?

 

[Tug-n-pull]

here is a great wright up on the swap! look it over and if I can help you know I will! tug

http://www.tricountyweldingsupply.com/carb/carb.htm

 

[Jeepster05]

Which one will have the automatic choke?? How much fabrication will it take to make this thing work right?

 

[jeep90]

Not a Ride I'd want to take again...

if you got one from a newer ford (late 70's) it should have the automatic choke, but i got the one from the waggy knowing that i would have to go to a manual choke. they work better in my opinion. http://www.starfighter.org/jeep/cj/carb/
http://www.geocities.com/jeeperaz/mc2100.htm

there are a few writeups. the throttle bracket is basically an L shaped bracket with three holes. the shorter part of the L is bolted to the carb facing down. you will see exactly where to drill the holes.

which carb are you swapping from? carter?

 

[Jeepster05]

A POS carter

 

[Junkpile]

2150 and 2100 cfm ratings
.98 = 190cfm
1.01 = 240cfm
1.02 = 245cfm
1.08 = 287cfm
1.14 = 300cfm
1.21 = 351cfm
1.23 = 356cfm
1.33 = 424cfm

 

[Jeepster05]

woooo-- hooooo!!!!

Isn't the ideal CFM for a 258 somewhere around 350-400???