leaking manifold?

[CJ_Derv]

Heyy guys, just a quick one too see what people have used and if anyones had a leaking manifold

As you know ive got adaptor plates but only sealed with high temp silicone, whoch to my belief has given up as its coaling from behind block, cant quite see which bit from but can definitly see underneath on part of the adaptor where its leaking, now its givin a noise like a screatch squeel over 3.5k basically on full boost, either that or the turbo has snuffed it,

But turbo can still hit 30 psi when floored into carpet but then backs off a tad almost like wastegate creep or boost leak but both of these can be ruled out so my only thought is manifold leaks got worse

It did have this leak on last dyno as could see smoke bellow out of bulkhead lol

Just wondering what people recommend, ive got some gasket material off ebay just wondering what else to use