If you like bad mpg,hot egts and your truck to run terrible and puke smoke all over itself its the mod for you... run a afc
Allow me to clear up some misconceptions about the above. First there is no AFC. call it what you like, I think most folks can understand what it is your talking about. However, as a tech it is...in terms of BOSCH, a manifold pressure compensator aka LDA.
Secondly, if you have deleted the compensator the engine will NOT "puke smoke all over itself and run terrible" These pumps are made OE w/o this device. True,,,,, not for OUR application however. But, nonetheless.....
If you did delet the above and it ran terrible or a friend of yours performed the above, and it too ran terrible, something was wrong. Something was not installed correctly and/or broken/missing...something.
I have personally removed enough reverse levers to tell you this with upmost honesty. Injection pump shops also perform this same method to modify a pump.
I cannot speak for the so called "AFC Delete" as mentioned, however it is true that removal of said lever inside the pump will net the same results.
The idea is to gain fuel. if you do perform this mod with success and find that the truck smokes and blackens out a four lane highway.....correct. It will. Period. The engine is telling you that you now need to perform SUPPOTING mods. That is to say modifications that will support the added fuel. Fuel injectors will also help, in terms of fuel atomization. A weak injection pump also, will not atomize fuel well either. You add additional fuel via the above mod and find you have loads of smoke, there are underlying issues here one must remedy.
Here is an idea...perform the mod and then turn the fuel screw DOWN a notch untill you can add additional air flow and/or learn how to drive w/o slamming your foot to the floor at each stop light. That will net you favorable results.