Depends on what class you are entering, most guys around here that win import car show trophies in best of class, etc have a wheel off showing their BBK, window's down showing interior mods, nicely polished up engine bay, and some sort of plaque with list of major modifications on the window. (Kinda gay if you ask me) BUT that's what it seems to take around here.

For the injector wires, run the harness up through the middle of the RBC then split off to each injector, easy way to tuck it a little bit.

Hope I helped a bit, your car is sick!