Please Help identifying underhood components

Hey guys, I hope you had a great holiday weekend thanks for all the great input and advise.

I’m ordering a headlight kit from the member Rob (crackerback) to take some load off the electrical system.

I do plan to update my lights to LED using slant six Dan’s recommendations.

I’ll check all the fittings and connectors for proper grounds, sand off any corrosion, and apply the dielectric grease to fittings.

Other than that I don’t plan to add any electrical components add ones to overload the system (stereo/electric fans). Stock is good enough for me. Hope it continues to last a long time.