Best plug to run with supercharger

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I am trying to find out what would be the best plug to run on my car.
Here is a little information:
1992 Z28
supercharged 383, 210 afr heads, tpis mini ram, long tubes with dual exhaust & fast ecm. I have autolite's in it now (not sure which one, without looking)

I want to know what to use at the track & use on the street. Becuase on the street i was told to use a different plug vs the track.

Thanks,
Robbie
1fas92

 

I run ngk's

BKR6ES -I believe. I too have a 383 w/afr's and procharger (10lbs)

Depending on boost and horsepower your heat range may vary.

Matt

 

Here is a little info I got off of other turbo sites. The guy that installed my fast system build's turbo Buicks. Well he said to run this plug, so I going to try it this weekend. But thanks for everybodys help on this one!
R5671A-10 NGK V-POWER RACING PLUG 5820


R5671A-7 NGK V-POWER RACING PLUG 4091 Hotter plug
R5671A-8 NGK V-POWER RACING PLUG 4554
R5671A-9 NGK V-POWER RACING PLUG 5238
R5671A-10 NGK V-POWER RACING PLUG 5820
R5671A-11 NGK V-POWER RACING PLUG 6596 Coldest plug

 

That is a really cold plug. I tried that "racing" series too, but the car actually liked the plug with a slightly projected tip.