
Ahh.. tune ups.
For plugs, I am a nippondenso fan, but they're hard to come by here. I usually just buy the bosch platinum +4's.
A 3/8" Spark Plug socket will work fine, I also find it easy to change them when I have a long extension on my ratchet. (I have an 8".)
Get some good wires. Don't get the universal fit (the fit is bunk) unless you want to have the possibility of the wires not staying on, or connecting right.
For the distributor cap, I'd recommend finding one that has the brass parts in it. They tend to last longer and conduct better.
The rotor doesn't really matter.
Get a good PCV if you plan to replace it.
If you're going to replace the air filter think about a K & N. In most cases I've seen it improve both power and gas mileage.
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That's about it I think...?