i just got 4 RX-7 injectors off ebay

i was told they were 460cc high imp injectors from 91 rx7

part number on the side says 195500-2010

can someone please tell me what type of injectors tese are

 

Those are second gen injectors, they have red heads and usually they're not 460cc, they're mostly 550cc primary and secondary. They're NIPPON DENSO type injectors. If its from a TURBO RX-7 injectors then it might be different size, but not smaller than 550cc. Use them, only on 2nd gen or an ecu greater than N304.