Lt swap

[bazookatooth]

Hello all,
I've got a 72 blazer (I know this is a trucks forum but I figure it's more likely to have been done in a truck) that I would like to swap a '93-'97 era 5.7L lt motor into. Ls swaps are everywhere but all I'm looking for is fuel injection, and with tbi kits north of a grand and complete Lt motors and pcm's to be had for $750ish, it seems like more bang for the buck. I am fully anticipating that it will cost more than that in the end. I currently have a crate 350 that has been in the blazer since I bought it 13 or so years ago and a manual 4 speed transmission (a 5 speed will be included in this project as well). Setting the engine in and running fuel lines, hoses and what not seems pretty straight forward, it's the wiring that concerns me. Anybody done this swap? I visited the lt1 swap wiring guys website and it was very informative. What I don't get is how does the engine wireing harness tie into the blazers wiring harness and fuse box and what all do I need relays for and how do they tie in. I guess I'll need an electric fuel pump relay and cooling fan relay at the very least. I'd be interested in any insight at all, mechanical as well as electrical. I won't be running a/c. Is there a year that works best or is more reliable? I'm not trying to build a hot rod, I'm just tired of fighting carburators and losing, drivability and economy are what I'm hoping to accomplish. Oh, It's 4 wheel drive.
Thanks!