Two obvioius things are the distributor and coil.
If you can raise the coil to the top of the engine, a favourite place is on top of the rocker box, and wrap it in a waterproof cover, a polythene bag cable tied up with a bit of silicon sealing it up from splash
Distributor wrap in a bag as well, tied below the locking clips for the cap and the same at the top with all the cables coming out.
The fan is good for splashing water around the engine, an electric one in front of the rad is a good replacement, if you have the bits, with a cut out switch, and a stat switch to kick it in, if you want to do that.