Harry,

The difference in torque is because of the long stud VS the short bolt, the stud streches more to hold the same as the short bolt, when I ran a lump port I ran short bolts and short studs at the torque that you use without problems.

I do think your plugs are too hot of a heat range and are acting like glow plugs. Do any plug gaps open up on a run?


Turbo-6