About 14 years ago, I sent my plugged injectors in to Marren Fuel Injection for cleaning. They tried to refurbish them, but called to say that they were beyond repair. They informed me that if I wanted, they would sell me a set of flow matched injectors. I can't remember the exact cost, but it was around $60 a piece. I agreed and they said it would be a week to get them in. A week later, they called me and told me that my injectors were ready to ship and that they had a hell of a time with them. They said that they had to order something like 36 injectors to find six within the proper flow range. They said that they couldn't believe how far off spec most of them were. In the end, I paid $360 for a set of injectors, but I know that they are all within spec. BTW, the injectors were made by Ram which is a very common brand. I'm sure you can find cheap injectors from Ebay or any number of other sources, but unless quality has improved a lot, you might be better off buying them from a real injector supplier that flow matches them prior to shipping.