94 up S10 Lt1 installation

I bought an Lt1 off of one of my buddies, and i'm wondering how hard it will be to put in my S10???????? Or how much harder it is compared to a carbureted motor??

If you buy the wiring wireness from Street and Performance its really easy. It all plugs right in.

I've got the wiring harness and its still plugged into the motor. We just disconnected it from the fire wall and took the computer out of it.

I just wanted to know if i have to mess with any of the stock wiring??