Originally Posted by Roadrash730
Chromie as per the other question about shimming u should be able to lean it abit more if your running 20% that motor really runs good around 260* I try to keep mine right around 255 or so and the plug allways reads good i use os rp6 plugs
Ah okay then, never knew they could run at those temps
. so just leave the shim as is too?