Power washing engine (on stand)

[Sport/Truck]

I have my engine on its new stand. And need to clean it. Anything I should be careful of? I plan on using something under the lift plate to keep water out of the intake-maybe the carburetor gasket or duct tape.
The timing chain cover is off, which will allow water into the oil pan. Do I need to worry about this or my new chain? (I cold do the bottom first upside down. Then roll it over to do the rest (preventing water from getting on the crank etc.). But I suspect some water could get in because the gasket is BUTTCO (I had the pan off and just reinstalled it for cleaning).
I have the exhaust manifolds off. Do I need to worry about water getting in the ports? Or should I reinstall them? What should I do to prevent water getting in?
What about the distributor, will it be ok since I’m not going to fire it right up?
Any suggestions or concerns would be really appreciated.
s/t