With electric FWC, one area in need of thorough cleaning and (IMO) modification is the sideplate diverter Tee and water jacket. I enlarged mine to 1/2" NPT and routed the coolant hoses around the front of the engine leaving the back of the engine for the raw water hoses.
I broke one of the mounting bolts removing the cover so I installed stainless studs with Loctite instead, figuring I'd rather have the fastening nuts outside the water jacket. If the studs get frozen in place, so be it, don't care anymore.
FWC Sideplate Studs in Place.jpg
Here are both sides of my modified sideplate. Note the new, larger alternator bracket that spans two bolts rather than one to spread the load.
FWC Sideplate w new Alt Bracket.jpg
FWC Diverter Cap.jpg
Here it is with the coolant hoses plumbed
FWC Sideplate Plumbed.jpg