Today I have read a bit in the paperwork that comes with the heads.
Can someone explain me the " coolant mod " ?! Ok it´s for better cooling the cylinder in the rear. But how does it works and what I have to change and is worth to do?
With your pics and explaining I can imagine what it means! I think it could be not wrong to do this! And if the Trickflow head are ready for this, why not!
Just seems so different. Its quitter which is a bummer and feels like I actually lost power but I haven't had it on a dyno or to the track yet to compare to the old heads.