more fuel questions

[Dave Yentema]

Pretty much the general consensus is that I am working with 20 year old parts that are just plain old worn out. As well as my NB afr gauge being spliced into my 02 signal may be interupting what the ECU sees

 So that means the injectors, fuel pump and fuel accumulator are the next major thing on my list of things to do I fear... I know that there are Mercedes equivalents as well as drop in upgrades for my injectors that are considerably cheaper, do any of you guys have info on that? Also for the fuel pump and accumulator, these things are friggen expensive as well, any advice on a good source?