Studs were originally intended for engines that are assembled and disassembled frequently. To keep from destroying the threads. 1008 Felpro gaskets are supposed to be no-retorque. Who wants to start up an engine and then remove headers to retorque heads. I want to go racing. Last motor I used head studs on, stock stroke 360, customer had the studs so I used them [knowing I should'nt]. First outing head gaskets pushed into valley 3 places. Disassembled engine cleaned and reassembled engine with ARP head blots instead of studs and it's been 5 years and he still racing it. When I have used studs, I bottom tap block first, install studs untill they bottom out and then back out 1/2 turn, then install gasket and head and torque to 100ft lbs with moly in two steps 50/100.