Boost, EGT and Oil Pres Gauge Readings?

[dongoesby]

I just got my defi link gauges hooked up. I'm not sure the numbers I got from my gauges are within spec for my motor.

Here's setup:
stock s14 sr20 w/ stock exhaust
(except tomei manifold, greddy oil pan and s15 smic core)
4qt 10w30mobile1 + 1qt 15w40mobile1 (for quiet down drained lifter)

defi link gauges: boost, egt, oil pressure, "oil temp"(not set up yet)
*egt sensor mounted on dp, half an inch next to turbo housing
*boost "t" to fuel regulator hose
*oil pres mounted at the oil filter housing
*oil temp mounted to greddy oil pan (still suffer wiring problem)

hwy cruising 65mph:
egt: 1100 F+ (normally near 1200F @70mph+)
oil pressure: 70 psi

idle:
egt: 800 F-
oil pressure: 20 psi (after warmed, ~60 psi cold)
vacuum: -60kpa (-8.7psi)

under 10psi boost
egt: 1400 F+

under 14psi
egt: 1500 F+ (full throttle at 7k rpm)

Do these numbers seem normal? I think mine is running lean at high end and becomes too hot 1500 F at 14psi. My friend's evo never go above 1400 F even under boost.
I heard at 1500 F, it is enough to melt pistons. Is the temperature at exhaust manifold/dp different from engine internal? Does it get hotter when the air gets outside of the engine?

what readings you guys have?