Center section of manifold cracking..

[marek4792]

Update. Egts are in range post turbo 875 to 900 at 1400-1500 RPM and 925 to 1075 in sustained pulls above 1500 to 2000 RPM especially in higher elevation until I back out of it, BUT also, it miserably fails the fuel rail pressure test 15k psi in a minute just about although I've changed the relief valve and sensor months ago and it held then. So I have some investigating to do before I go firing the parts cannon...