Go get a snack and a beverage. Get comfy. I started on the Solex carb on old bugs, and a Carter YF-1 for the Willys. I saved the carbs from my Grand Wags, a Ford 2150 2 barrel. This was 15 yrs ago and I needed a carb to pass roller emissions I had 3 carbs in rough shape and an Echlin carb kit from NAPA I used a bucket of stale gas and a tooth brush to de-cruddify the best pieces. I chose the one with the tightest throttle shaft. and followed the instructions in the kit,Enough of them to build a carb. I used 2 cans of carb cleaner to clean out stuff.. I was laid off and I spent a a few days, painstakingly assembling the carb. Tore down 3 cabs and used the best looking innards soaked 'em and cleaned best as I could.. Replaced all the vacuum lines , 30 feet or so,looping the various little valves and widgets. Had a working smog pump plumbed to a new cat. With a new 200$ EGR valve, the Jeep passed by a factor of 4. The inspector was amazed