I have had my stock sidekick up to the lights.  No problems, Just my wheelberings got full of water and rusted 

I dont like wd-40, I dont like washing it off in the streams.  Ignition protector is like a clear coat that wont let water through and is permanent.  can spray all your electrical connections if your paranoid.  I sprayed where the wiring harness comes out the firewall.  I sprayed once when I put the new wires on, a thin bead of silicone around the distributor mating surface, and I have not had a problem since.   I had water over the hood before, where it flooded in through the wents, but ran like a charm.  oh and silicone the distributor vent closed.  dont need it

Trust me.  ins