I have a knock coming from piston 3 and 5 on my 300d. I'm running bosio nozzles and had one looking pretty carbon fouled, so I took it apart to find that it was completely black and the metal was pitting, I don't think it seated right. I took plunger out and noticed that it had a millimeter long scare in the middle of it. I had a old injector body laying around and swapped the nozzle into it to see if I could get the nozzle to seat right. Now it pings, from the injector I worked on, and knocks from the other one. It's also missing once in awhile. I'm not super impressed with bosio nozzles right now and wondering if I should spend $100 and buy two new nozzles or cut my loses and try something else. Will the scare cause my knocking and pinging?

__________________
84 300sd 2.47 dif 360k
26 mpg needs lots of love
given to me in pitty

89 civic hatchback auto 140k
33mpgs soon to be low to mid 40's
been in the family since mile 1

85 300d with unknown knock. driven over 30k with knock and still going. sold for $800