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Old 08-30-2011, 02:01 AM   #1
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Carburetor replacement

Hey I have an 88' YJ 6 cyl. 4.2l. And I recently did a carburetor rebuild to solve my starting and stalking issues. After the rebuild it actually starts worse but it does run a bit better. I'm thinking of just tossing my piece of shit BBD carburetor and getting a new carb to throw on, any suggestions no the brand of carburetor?

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Old 08-30-2011, 05:30 AM   #2
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i have a weber and it sucks. ive heard good things about the motorcraft 2100 off of old fords but havent tried it myself. im going to get a new intake and run a holley 4 bbl. i had that setup on a 4.2 before and it worked great.

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Old 08-30-2011, 07:41 PM   #3
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Any thoughts on edelbrock? Holley?
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Old 08-30-2011, 08:09 PM   #4
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I put the Weber 32/36 on about 6 weeks ago...runs better than it has in years. Better starts, smoother accel...and no gas smell.
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Old 08-30-2011, 08:09 PM   #5
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I have heard many different things but?? Everyone has thier favorite. The best is if everyone shows the difference in performance before and after.. I still have the crap carb but my buddy just swapped out his holley for a motorcraft/ 2150. ?
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Old 08-30-2011, 08:12 PM   #6
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Just put in a 500 CFM Holley, it's great! I got a MC 2100 from the Ebay guy and it was F'ED! The Holley is a 0-4412C I think
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Old 08-30-2011, 08:24 PM   #7
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matcheen is that a 2 barrel 500? i have one i was wanting to put on but didnt know if it was too big.
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Old 08-30-2011, 08:48 PM   #8
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Ya, it's the 2 bbl 500, great carb! My B%tch has never run better...a bit rich right now but re-jetting is easy and cheap.
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'90 YJ, 4" RC Suspension lift, 1" Shackle lift, SYE and CV, Holley Carb, 33/12.50/15 Dynapro M/T's. RIP my old friend.
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Old 08-30-2011, 09:00 PM   #9
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Sorry, it's the 4412S
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'90 YJ, 4" RC Suspension lift, 1" Shackle lift, SYE and CV, Holley Carb, 33/12.50/15 Dynapro M/T's. RIP my old friend.
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Old 08-30-2011, 10:19 PM   #10
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So you'd recommend the holley? Is edelbrock any good, or is holley better to go with?
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Old 08-31-2011, 08:04 AM   #11
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Don't know about the Eddlebrock, but I know the Holley is better then the MC2100 I had.
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'90 YJ, 4" RC Suspension lift, 1" Shackle lift, SYE and CV, Holley Carb, 33/12.50/15 Dynapro M/T's. RIP my old friend.
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Old 12-27-2011, 07:54 PM   #12
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what intake are you running under your holley matcheen? if stock any advice on the right up grade to make from stock to run with that carb? or possibly a different combo you think would work well?
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Old 12-28-2011, 10:00 AM   #13
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Holley and Elddlebrock are over priced for what you get. The MC2100 is considered to be one of the best carbs to put on a Jeep. Why pay $300-400 for a a carb when you can get a junkyard one for $20-40 and rebuild it?

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