Alright guys, I'm back. I am currently running a .98 Autolite 2100 (smallest they make) that was OEM from a '63 Ford Falcon, or Mercury Meteor. I had to run a electronic choke conversion on it because I couldn't fit the automatic choke on, it was running into the side of the valve cover. It was still a tight fit and I even had to "massage" the valve cover with a rubber mallet to fit the electronic choke. It runs well and everything, however I am not getting the greatest gas mileage out of it and more importantly I am having trouble with a high idle, even after it is warmed up. Basically in regular driving, the idle is way too high, and I have to "punch" the throttle to kick the idle down as you would to take the choke off, which once I do it goes down to normal idle, but if I give it any gas after that, even just to move up in traffic a little, the high idle immediately comes back, then I punch it to kick it down. It is quite annoying and I have a feeling gas wasting as well. I'm pretty confident I have the idle adjusted correctly because after being kicked down it is right where it needs to be.
Since the issue is occuring when the engine is warmed up, I feel it would indicate a choke issue, specifically the choke not opening enough when warm, which may be the result of a linkage bind. However upon lots of research, I believe the problem is likely the electric choke. Apparently the early type choke on the carb you have was not made to be used with the electric caps. It wasn't until 1965 that the choke housing could accomodate the relatively shallower electric spring and cap. Now I'm sure the OEM choke cap would cure this, but it is not an option for me as I stated earlier, I simply cannot fit it.
I will first check the if anything is possibly binding, which who knows, it may be the problem, after all it didn't start doing this after it was all newly installed. It has only been the last few weeks it started to so I will definitely need to make sure that isn't indeed the problem before going on to another carburetor, but if the electric choke is the problem like I'm afraid of, I am going to be back on the search for a new carb.
I really want something daily driving reliable, good low end torque for when on the trail, and good gas mileage. I would like to hear more opinions, or suggestions on carb choices. I have narrowed it down to 4 or 5 that I am interested in.
1. Holley 250, 350 CFM manual, or can be converted to electric choke. This seems to be a pretty common carb to bolt up, mainly in the mini stock crowd, however my Ranger is a daily driver/trail rig, I am seldom in the 5,000 RPM range, where this carb seems to really shine, plus they aren't cheap.
2. Weber single barrel (34 ICT which is a no choke carb, or 34 ICH which is manual choke) or maybe an old Ford single barrel? I would like the simplicity, good gas mileage and low end torque I feel I would get from one of these carbs. I would just need to run a adapter plate to run on my 2 barrel manifold (which I have found one).
3. Weber 32/36 DGEV electric choke. These are favorites of Toyota and Datsun guys (among others..), and are awesome on a daily driver, and are actually made for 4 cylinder engines up to 2300cc. This seems like it would be a "best of both worlds" type carb when it comes to crispy throttle response, and higher RPMs as it is a 2 barrel progressive. I found a couple on transdapt's website, however I am unsure exactly what adapter plate would be the correct one. It would either be the 2040, or the 2086 I believe.
4. Weber 38 DGES electric choke. This is basically the performance version of the 32/36. It is a 2 barrel synchronous, so the gas mileage won't be as good but from what I have read, the performance is much better from this carb, especially if you have any engine mods, and or run bigger tires (which I am). It would use the same adapter as the 32/36, and isn't much more expensive, but in the long run it may be on gas, plus I would rather have crispy throttle response than have to wind the engine up to notice the performance increase (who knows, maybe it is an awesome throttle response, I'm not sure).
Like I mentioned above, I am looking for the best carb for daily driving reliability, low end/throttle response, and gas mileage, not so concerned with top end RPMs.
Thanks guys!
You can check my Ranger out with link below
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