Back in 1964, Ford had a brilliant idea: Take a Falcon economy car, dress it up with some new sheetmetal, and sell it as the next greatest thing in the history of the world. That might not seem like a particularly novel approach today, but back in the 1960s, Ford absolutely shook the automotive world to its core by doing exactly that. The 1995 model year was the last for Ford's venerable Windsor small-block, before the Modular engine came along and perverted everything. Since you're lucky enough to have the last of the Windsor-engined Mustangs, you might as well show off all that history under your hood.
By far the most important thing you can do to dress up your Mustang's engine bay is to thoroughly clean the thing. You can use aluminum wheel cleaner on the top of the intake and in the channels between the intake runners, and use a stiff-bristled detail brush to get the junk out. You might be surprised how far a little plastic restorative like Armor All will go in this engine bay as well; there's so much black plastic on the engine, on the body, and so many wiring conduits, rubber hoses and vacuum lines that getting them black and shiny again will take a decade off the car. The next step involves taking a scrubby pad to aluminum parts and hose clamps, but you may find it easier to simply replace the clamps.
The Windsor engine's incredibly long lifespan and many applications means that the sky is the limit when it comes to dress-up parts. You can buy chrome or polished aluminum intakes, throttle bodies, intake tubes, valve covers, radiator hoses, pulleys, water pumps, alternator cases and more. You can buy replacement plastic covers for the distributor and power steering reservoir neck, but you're better off painting them. You can use a plastic primer on those parts and any other in the engine bay, including the fuse box cover and fluid caps. At this point, you can hit them with a nice metallic paint to match your car's body. Don't use a contrasting color; you want these parts to blend in so the chrome can do the work.
There's a lot going on in the 1995 5.0-liter's engine bay, and most of it isn't pretty. As is usually the rule with engines, you'll want to avoid just randomly throwing colored bits at the motor like knick-knacks around a cat lady's house. You'll want to emphasize anything that's heavy and metal, and hide anything that isn't, with the possible exception of the plug wires. Which should match your car's body panels. You can start by putting the wires in looms, and rerouting as many of the vacuum lines and tubes as possible close to the body and firewall. The next stage is to make a "false" firewall or fenderwell cover that simply hides these things beneath a smooth, flat panel. If it isn't heavy or metal, and doesn't make the car go faster, hide it or paint it flat black.
If you really want to pay homage to the last year of the Windsor engine, you can take advantage of some of your Mustang's history to do something really standout. If there's a setup that defines the Windsor's glory years of the 1960s, it's individual throttle bodies. Mechanical fuel injection and individual throttle bodies were the hot-ticket item in the 1960s, and still look killer today. In performance terms, ITBs will make some power, and they'll definitely increase mid-range torque and throttle response. But even though you'll have to partially hide them under a plenum to permit use of the single mass-air sensor, a properly dressed set of ITBs will make your Mustang the standout of any car show. When shopping, make sure to get a setup with the injectors facing inward and the fuel rail running down the center; you don't want to ruin your classic look at the last minute by hanging those modern components out in the open.
