any 95 vehicle is gonna be fuel injected unless modifed at a later year by the previous owner.
There are 2 types of 1995 S-10 4.3L trucks. The 4.3L TBI (z) have 6 injectors. But there is also a 4.3L CPI (w) which has an injector assembly. Which is 1 central injector with 6 lines that distribute the fuel. But both are"fuel injected".