Do:
-good installation - soldered wire connections + heat shrink
-good failsafe
-a valved system to cut off the injection of water/meth to prevent run-on or the result might be an IC full of methanol.
Alky kit w/o solenoid valve...not good! - Post #30
-educate yourself about meth injection. Good reference material from Richard@Aquamist, read, digest and ask lots of questions!
Indepth study of WAI injection systems - all things meth injection
There are failsafes, failsafes and failsafes... - all things failsafe
-WAI Manufacturers should add a relay so WAI can draw power directly from the battery. Cost more but good reliability long term for the end user.
-check you methanol if you buy it from a race shop from a open drum
Methanol + water = milky
Do not:
-Draw your WAI system's +12v supply from the OE harness. Use a relay. 10amp is a great deal of current.
-Don't use contaminated methanol. Check it for clarity with water.
I'll update this as more ideas pour in