The silvertop gasket is 1.8mm give or take.

So you have over bored a 1.8 to take st pistons and rods but have gained 1mm in deck hight and the st head will ad a bit.

What octane is the fuel ?

Turbo may be a touch large for the power.

At 9.6:1 I would think you will have to be very careful with mapping to avoid det but it does not sound out of the question.

I would love to know how you get on