Best Practice for hot humid weather

[dhanania]

What are some best practices I should follow in hot humid weather. I am in Florida and have a 1973 e-type coupe. Pretty original just a reopus upgrade and thats about it. I have rebuilt the engine and carbs and wants to know what ways I can keep this thing going. Maybe some practices for when it has sat for a while? Some info on best oil, what type, best coolant. Information like that would be so helpful!