Keep in mind that turbo needs a support and shouldn't be under too much force when fastened. I've actually seen non-braced turbochargers bolted on a cast-iron header "fall down" and distort the header due to intense heat turning header-material into plastic-deformation state.

Weird but it really happends.

MYTURBO, I sent you a PM

Yes Beep, I see what you are saying but if I get the correct mount and I have to tweak the turbo to get it on then I will suspect other problems.