Injector Question


Just starting
I have an 87 GN, when i bought the car last fall the person didnt know much about it. Had no idea if the car was stock or anything. I simlpy cant tell by just looking cause im not that educated. All the person told me is it has a chip.. I opened the computer and it does have a hypertech chip, not sure what type tho. the car runs strong and pulls hard for all i know its stock.. I would like to possibly get a new chip from turbo tweak, but i dont know what size injectors it has. Is there a way to check without taking them out? And with the turbo, how do i check to see if thats stock or not? Thanks for the help guys!!!!! Kevin