they should be ok to use.
heres a nifty trick for getting injectors out (so you dont have to take a pair of plyers and wiggle them out.
1. unscrew the cap for the injector
2. remove cap
3. screw the screws for the cap about halfway into the threads
4. using two smaller flat head screwdrivers put the two tips in the little slots on the side of the injectors, and use the screws you put back in, as pivot points. they pop rite out most of the time without hurting anything.
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