I have a PSP 2/3# lower pulley plus an SHM 2# upper pulley ready to install. I already have ngktr5's in my 2000L as we speak. Will I be o.k. with the extra boost and the ngk's??? Thanks for any help/advice.

 

I used the Denso IT20's on my 3lb and for 8K on my 6lb. I loved them. Now I have the IT24's. The 20's would work good for you as well... You on the line between the 20's & 24's...

 

According to Sal(PSP), you won't The TR5s are the same as the stock plugs as it relates to their heat-range. You are asking for 'detonation' trouble.

He recommends Denso IT24s or NGK BR7EFs for 5+ extra boost. I've been using the BR7s but I'm changing over to the Densos because the BR7s misfire(they are 'cold') at low speeds. The Densos shouldn't. Gap the BR7s at .040" and the Densos at .038".

Dan