i used to sell echlin at a napa store i worked at in 91-95 or so. we eventually got an asnu injector cleaner. a used bosch after cleaning always had a better pattern than a new echlin. things MAY be different now.

as a side note, interested in donating your old injectors? i've found a pump style cleaner, like factory bosch, and would like to see how it does before i invest in it. send me pm, please, thanks, chuck.