Best Spark Plugs?

What are the best spark plugs to use on a 00GT with would will soon be some minor mods?

3.8L L36 65k

I'm finding that the AC Delco Double Platinum is the best? But i'm also seeing a lot about Iridium? All the propaganda for it sounds good, but is the performance as good as the hype?

Stick with the AC-Delco 41-101 Iridiums, unless you change them often while at the drag strip.

I'm finding that the AC Delco Double Platinum is the best? But i'm also seeing a lot about Iridium? All the propaganda for it sounds good, but is the performance as good as the hype?

Just out of curiosity, what data have you found that claims the AC Delco Double Platinums are the best?






http://i5.photobucket.com/albums/y186/lizzywiz/gtp.jpg
Thrasher CAI, DHP v1.0 PCM, SLP Headers,
3.25 SC pulley, CAIT GMAF, 2.5 DP/Hi-Flow CAT,
u-bend delete, 160 TS, ZZP Stage 1 72mm TB,
TB spacer, MSD 8.5mm wires, Autolite 103,
Goodyear Gatorback Serp. & SC Belt,
Nitto NT555R Drag Radials
1/4 ET: 13.210 sec. @ 104.490 mph
0 - 60 ft: 1.945 sec.

No data, just two mech shops in town telling me thats the best ones to use for my car. But from what I'm gathering now the AC Delco Iridiums (or some kind of iridiums) are the best. Does that sound right? What do you run?

If you're stock go with the 41-101 Iridiums as everyone has suggested. They are the standard OEM plugs now. I use them in my Regal GS and son's Alero GL2. In my GTP I use Autolites but I'm modded. BTW - When the AC Delco 41-101 Iridiums were first introduced a few years back they were actually made by NGK. The 41-101 in my Regal GS has NGK stamped in the base below the ceramic.






http://i5.photobucket.com/albums/y186/lizzywiz/gtp.jpg
Thrasher CAI, DHP v1.0 PCM, SLP Headers,
3.25 SC pulley, CAIT GMAF, 2.5 DP/Hi-Flow CAT,
u-bend delete, 160 TS, ZZP Stage 1 72mm TB,
TB spacer, MSD 8.5mm wires, Autolite 103,
Goodyear Gatorback Serp. & SC Belt,
Nitto NT555R Drag Radials
1/4 ET: 13.210 sec. @ 104.490 mph
0 - 60 ft: 1.945 sec.

yeah, i noticed that too -> NGK stamp on the base... I had wondered about that