Which Denso's replace the TR6's?
 

I was wanting to change to Denso's but not sure which one's are a direct replacement for the TR6. With the 4# lower and metco upper Im running, I need the heat range of the TR6 plugs Im running now to keep detonation at bay. Ive seen It20''s,22's,24's etc.:confused: Any help GREATLY appreciated!:cool:

I have a 5 lb lower which is close to your total boost. Sal recommended IT24s for mine.

Dan

HERE IS A GOOD CROSS REFRENCE GUIDE
 

If your having detonation problems get a reburn or run a higher octane fuel, its not the plugs. I run a 6# pulley with NGK TR5's and have no problems at all. I also run 100 octane mixed fuel. The only reason you needed to get rid of the stock plugs is because the platinum plugs hold heat like a Cat. converter does.