I just got my 5.3 block and parts back from the machine shop and about to start assembly. Cam should be here tomorrow, oil pan Saturday. Heads are getting freshened up and should be back in a few weeks. Im trying to decide weather to go full ls with the fuel injection or do a carb swap. I know nothing about the ls wiring and computers. I will be running the 350 turbo in the elco so from what Im reading I need a standalone harness for non elec trans and a fuse block. As far as ecm, don't have that yet. Not to mention fuel pump and tank. I have Always had carbs so all this has me leaning towards a carb swap. I welcome input from both sides to help my decision.