Vitara piston rings question.

[racepak]

hello everyone.

im trying to finish my build. and i need to know how to place the piston rings,

i noticed that the 2nd rings of my vitara pistons has a nouch. and is not flat,
i need to know if the nouch should face up or down?

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and also i just noticed that the inside of the top ring has angled groove,
which way should it go? up (groove facing toward the head) or down (groove facing cranck)?


thanks