what kind of injectors?

[my1stfc]

hello all. so . . . i'm looking into getting new injectors for my 87 non turbo. i have about 71k on the motor, which is stock except for an intake and custom exhaust. my problem is i don't know exactly what to look for for my application. peak/hold? saturated? high or low impedance? all i know is that the injectors there now are 460cc and i'm not sure even that is right. if anyone has any suggestions or knows where i can look for the answers i need it would be greatly appreciated. thanks in advance for any help.
also, aside from checking my lines and fuel filter, is there anything else i should consider when i change the injectors?