PREGROOVE TEMPS Manifold 360 degree
Water 198 degrees
Catalytic converter 356 degrees
Tailpipe 161 degrees
POSTGROOVE TEMPS Manifold 264 degrees
Water 191 degrees
Catalytic converter 285 degrees
This pickup will do 95 mph in a 1/4 mile now. FUN video of postgroove test on (GadgetmanNebraska1) on YouTube