EGTS Up Why?

[Bidja]

Got the gauge going, it's only making half boost.

Normally it'll peak at 15psi and sit on 13psi at 100kmh on the flat in 5th, that gives me 300+ EGTs.
Today at 100kmh I was boosting around 5.5 with EGTs at about 500+

I got both a Dawes and Needle valve.

The only thing that I have done that could affect it was that I tightened up the large hose from the IC a while back, that's the only thing I've touched. That could have produced a leak I guess, it's the original hose, maybe it's overtightened?

No engine mods.

I'm going to check/replace all the small vacuum hoses around that area.

Check the actuator rod function, at idle by having vacuum hose connected to actuator (rod up and lever resting against stop screw) and then disconnect the vacuum hose (rod is to drop down).

Strip Dawes boost controller and clean inside of the body, seat and ball. Mark where it is currently set with marker pen for Ref.