I, myself run ARP bolts with 12 kilos and Dragster got 13 kilos (100lbs) with ARP studs and flame rings. Gaskets are Fel-Pro blues.
Like Seppo's video shows, Y-Block's threads will survive and stock bolts surrenders at 14-16 kilos. So ARP's can stand that well.
Never did that stress test with ARP's, thou.
Hyvinkää, FI