Just to play devils advocate here.. Are you sure these are FLOW MATCHED ? These engines are soo reliant on the correct fueling I'd hate to see mismatched injectors cost someone an engine. I'd be very hesitant to install mismatched injectors in my truck..
I have been ASSURED by my injector source that these have been FLOW MATCHED. I am currently using these very same injectors in my truck, and have yet to see an issue asire. I have sold some to LS1 guys, and they have also had very good luck with them. Thanks for looking out for fellow board members, though.
I still have some injectors (36). I am expectng some more comng in soon. I am trying to keep these in stock now, and trying to get some larger units too.
I bought a set very nice got them very fast and when I got them the number came back on a search that they where DELPHI/RACETRONIX flow matched injectors...
the 4487 are the OE part number....it is the same injector. As I have stated in another thread, I have (8) 75# injectors in my hand right now. $45/each shipped and insured. LMK..I am shipping a few sets out this coming week.
I'm interested in the 50# injectors, what do you need from me? I'm runing with a Walbro 255 fuel pump, Ultimate Chip setup programmed for stock injectors, which I will send out to be re-programmed for the 50# injectors. I also have a 20G turbo upgrade.