I'm an AFI fan. I bought a used AFI kit (with an electronic-control converted DUI distributor) here off of 'mud. It replaced a JimC rebuilt carb and recurved dizzy. While I didn't gain any top-end power or mpg, the drivability was improved 100%. No choke to mess with in cold weather, no waiting for the second barrel to kick in when you mash the pedal, effortless elevation changes, it just worked. It was pretty easy to install and it fired as soon as I turned the key.
I was skeptical of the DUI dizzy based upon 'mud reading, but never had any problems out of it. The cap was damaged in shipping and, in my search for a new one, discovered that DUI is located here in Memphis. When I called inquiring about a cap, they said to bring the dizzy by the shop and they would test it on their equipment to make sure it was still operating as intended, even though I wasn't the original purchaser. I was impressed by the experience. This dizzy is huge, though. A dented side cover is necessary for sure.
The AFI kits do not have a VSS. I did not have any idle problems out of it. I'm not knocking the VSS or question anyone that says you need one, I'm just relaying my experience. It ran great without the VSS. I never had it stall or even try to stall. I was also able to adjust the idle speed. Could it have runner better with a VSS? Maybe, I don't know. But I know for sure that mine worked and never gave me any problems.
I've since gone full GM engine & transmission, but loved the TBI conversion on the 2F. I drove it from Memphis to the Rubicon, ran the trail, and drove home without as much as a hiccup. From -200 ft. in Death Valley, to 10,000 ft. in the Sierras, it ran great the whole time.
While I considered it reliable, it did take more tinkering than the carb setup. Granted my kit was used and I think had been sitting for a while before I bought it, I did have to replace an injector, an O2 sensor and another sensor or two. But it is stupid easy to work on and new parts are inexpensive and plentiful. I made sure to carry a few spares, but never had to use them.
I was skeptical of the DUI dizzy based upon 'mud reading, but never had any problems out of it. The cap was damaged in shipping and, in my search for a new one, discovered that DUI is located here in Memphis. When I called inquiring about a cap, they said to bring the dizzy by the shop and they would test it on their equipment to make sure it was still operating as intended, even though I wasn't the original purchaser. I was impressed by the experience. This dizzy is huge, though. A dented side cover is necessary for sure.
The AFI kits do not have a VSS. I did not have any idle problems out of it. I'm not knocking the VSS or question anyone that says you need one, I'm just relaying my experience. It ran great without the VSS. I never had it stall or even try to stall. I was also able to adjust the idle speed. Could it have runner better with a VSS? Maybe, I don't know. But I know for sure that mine worked and never gave me any problems.
I've since gone full GM engine & transmission, but loved the TBI conversion on the 2F. I drove it from Memphis to the Rubicon, ran the trail, and drove home without as much as a hiccup. From -200 ft. in Death Valley, to 10,000 ft. in the Sierras, it ran great the whole time.
While I considered it reliable, it did take more tinkering than the carb setup. Granted my kit was used and I think had been sitting for a while before I bought it, I did have to replace an injector, an O2 sensor and another sensor or two. But it is stupid easy to work on and new parts are inexpensive and plentiful. I made sure to carry a few spares, but never had to use them.
