[Max777]

Well, on most fuel injection cars, you can do "leak down" testing, where you hook up a fuel pressure gauge, an injector testor, and test them, noting the starting pressure, drop down pressure, and checking these against the leak down spec in alldata. This can tell you if the injectors are leaking too much fuel.

This method works well, but for a home mechanic, you are probably not going to have the tester, and it's a bitch to get to the primary because you will need to dis assemble your intake manifold down, and remove the emissions out of the way to get to them.

I say, send them out to KG parts, Witchhunter Performance, or etc, they tend to get dirty after 20 years, so even if they dont cause a huge problem now, it's still a good idea on these cars.

PS: if you want to save some $$$ on gaskets, go to advanced auto parts, buy a roll of gasket material, and cut it. (Get the thinner yellowish stuff, dont get the thick cork stuff)