Does any one out their make a sealed or water tight TBI computer, I am running one for a 1990! Or are their any good fixes that the POR guys or gals have come up with. I know the new LT1 type vette computer is mounted on the fender well so it must be sealed.

I stuck mine in a flat ammo box and mounted it inside the cab. I mounted it to the firewall on rubber bushings for vibration. Run the cable through a hole in the box, then ran a rubber ring around (to prevent cutting on the metal) and sealed it with silicon. I've never gotten anything inside the sealed container.

this might be a stupid ? but do they need to have air flow or any thing like that? What are the dims of your "flat" amo box and what caliber is it?