I was planning on changing my plugs and then driving around tuning tomorrow.
Then I seen the plug heat range thread and decided to look into my plugs.
I still haven't looked at what's actually in it right now. But the ones I bought are AC Delco 41-162.
Which is supposedly the replacement for the 41-110 after NGK quit making their plugs and denso took it over.
I read that the 162 is a denso heat range 14. Which equates to an NGK 4.
But when you cross reference the 110 (supposed to be the same plug

) it's equal to an NGK IZTR5B11... Which is a 5.
Not sure if I got bad info, since it's impossible to find an actual AC Delco heat range spec on these things

, and that's what a dude on an LS1tech thread said.
The 162's are an OE replacement for a 2010 Camaro SS with the LS3.
Which has the same bore, heads, and compression I do.
Big differences being aluminum block, they're running a higher thermostat, and I have a bigger cam.
Will those things make a difference for heat range?
I guess I'm going to throw them in and see.

I'll know more about what I need when I get the current ones out and look at them.
I'll pull these and read them after while too.