The only time this truck has hit 1200* on the pyro since I installed this 62 is when a I blew an intercooler boot off and had zero boost. Other than that I have not really been able to touch 1200* or higher, at all. Boost easily maxes my 35psi gauge. Another member said he was running in the 42lb area. I have no clue since my gauge only goes to 35psi. I would guess you have a leak somewhere....
and yes, I'm on stock 3.73 gearing and 35" Cooper STT's.
As for underhood pics... it really doesn't look like much once it's in there. I'll see what I have though.