Lost all power to car...

[240sxracer15]

I do not have the hood or bumper on the car and it was left out side during a small rain (not the past couple of days rain) but a small shower that came through about a week ago. I have the battery relocated to the trunk and there is a inline fuse block 100amp underneath the hood on the power wire that runs to the battery. I went to start the car after changing out the timing chain tensioner and the car started for a second, ran a little rough, and I turned the car off. Went to start it again and the car acted like it wanted to start and then it lost all power. This has happened a couple times in the past and it always blows that 100amp fuse so I just replace it with a new one and I assumed that's what happened here. Well I went to change the fuse and it was fine, so I looked over the fuse block and it looks like someone poured salt in it because I think it got tore up in the rain. So I replaced the fuse in it anyways and the power comes on for a second and then nothing, it clicks off just like when the fuse blows. So I go and replace the fuse block and still nothing. I check all the wiring, I check other fuses, I jump start the battery, all to nothing. Is there anything else that I should check that could of gotten wet and made me lose all power? Sorry if this sounds confusing, I'm sort of rushing to get my daughter to bed.

93 w/Black top SR

[2_Liter_Turbo]

Did you check the 80 (or 90, I forgot) amp fuse in the fuse box? That could have gone out as well. Double check all of your main grounds and power connections. When you say all the power went, you are talking about literally everything correct?