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Here is a helpful link to sort out the vacuum mess: Table of Contents

Nice job, I too am going to be making one similar to that.

I rebuilt the carb before I installed it, however I damaged the power valve that came with the rebuild kit (still had some glass beads in the threads left over during carb clean-up). I put the used 2 stage PV that came with the carb and tightened it up, the jeep will now idle but it is...

I pulled the carb and discovered I have gas in the power valve cover. I replaced the power valve gasket reassembled it and it runs 100% better, it idles smooth and responds well. I let it warm up and after 5 minutes it started the pulsating idle again. I shut off the jeep and the power valve...

Ok so I've messed around with it a little and I belive that part of my problem is with the choke not operating properly. When it's cold it wants to backfire and carry on, once it's warmed up it's halfway responsive. Once I finally got it warmed up I was able to set the timing to 9deg btdc at...

It's an 88 YJ with the 4.2 and manual trans. It's stock except for the MC2100 and a HEI ignition.

I am new to the forum here and am having a heck of a time sorting out my MC2100. I recently acquired a jeep on trade and it was barely running with the factory carter carb, I thought this would be a good opportunity for a swap to a MC2100 since everyone raves about their simplicity. I took a...