Long rant as I was bored 
Will put on my flame suit later as plugs, wires, oil and so forth on a car forum are worse than talking politics at a large Christmas dinner haha
Dual ground plugs were the tech at the time and will work perfectly - and are affordable. I would never use them as there are considerably better - longer life plugs today.. and for sure... skip the AC delco.
I would recommend
BKR6EIX-11 ngk IRIDIUM
OR
DENSO IK20
They are a step colder, but they look just as good as a stock 5 range when checked so the step colder is no issue. If you just want a stock heat range, go with BKR5EIX-11 or IK16. I tow a lot so I generally go a step colder.
Both will last with ease past 100K miles and offer excellent fuel burn / combustion. Anyone that tells you different is flat out full of crap. There is a reason almost every manufacturer on the planet has gone to a fire wire electrode. However you will get the argument that only a dual ground plug will work as it was "designed for our engines". Rubbish, they simply used them before fine wire plugs were available. And if you really want to experience a fine wire plugs benefits, stick them in an old engine, mower, dirt bike, quad or whatever application they have them for. They are damn near impossible to foul and make small engines very easy to start and are are far less likely to suffer from ignition breakup / spark blowout with high RPM engines / performance engines. All of these benefits carry over to most any engine (terribly hard to foul, quick starting, excellent fuel burn, exceptionally long life)
I always laugh at people saying fine wire electrodes made their car run poorly blah blah. Or ridiculous crap like the tips will fall off and bounce around putting pin holes in the piston (old school hotrod guys came out with that lol). Or that they made the engine run rough. One guy said ages ago they ran so hot that it melted his engine. REALLY? The plugs made your engine run hot and melted it? lol The engine will run rough if the person tried to gap an iridium plug and snapped off the tips (you do NOT gap iridium unless it is a special application and you know what you are doing) And there was always a ton of old school guys trying to cram a slide gaping tool into an iridium plug breaking it, not realizing they broke it and then *****ing about how their car runs. A lot of people don't get it and think they need a tight gap on iridium because they had to with the old hotrod standard plug referred to as a copper plug (actually a cheap junk nickel tip with copper core. they worked but lifespan sucked). One of the benefits of a fine wire electrode is to run a wider gap, without risk of spark blowout or misfire so keep the above at their .044 stock gap.
Out of the thousands of sets I sold (of all plugs including iridium) and installed as a spark plug specialist for race teams and performance shops in a former life, I never had a single issue with fine wire plugs. Iridium or even gold palladium fine wires simply worked and worked EXCELLENT in every application. I have run them in every vehicle I have owned since their inception including my own 4runners and my put over 90K on a set in my previous 98' to note and hundreds of thousands of miles on them in other cars. In short, install and forget for the LONG run.
Now that I am done with my ridiculous drunken sounding plug rant,
I simply have good luck with NGK wires for the 5vz. They are affordable and very well built. Part number TE66.
