New style will have oval connectors old style will have square ones and will eventually fail from the ethanol added in today's fuel. If you have the old style then you should contact Bernie for a conversion kit to new style injectors sized 270cc. If you have the new style then you should get your ECU chipped for them and be done with it.Check your ECU to see if it has a sticker indicating it has been chipped, also check for any foreign equipment like a mass airflow converter or adjustable fuel pressure regulator, if none exists then it is possible for a Z to run seemingly/ unnoticeably fine with 370 injectors but you may secretly be doing damage to your engine by diluting the oil with all the extra fuel.
*disclaimer*: all that I say may be true or I may be completely wrong and I accept that.... please, it is your duty as another person on the internet to in-politely tell me how wrong I am :) "The dreaded 2nd windshiled wiper swipe when you turn it off its almost like tis showing you that it's boss, and it doesn't have to stop when you tell it to :("-College Boy (discussion on ptu relocation) "No good reason to put it there anyway. -Bernie (NoVA) False -vorpalZ False. -Bernie (NoVA) You're correct, there are 3 good reasons -vorpalZ False. -Bernie (NoVA) Wow, right again, just remembered another, make that 4 -vorpalZ" XD 
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