Push Rods which one?

Little update here... I went out today to assemble every variable I could had. Installed and torqued down the heads with gasket. Installed rockers and torqued the hold downs. After lash has been set im sitting right at 3 threads showing... So i called up smith bros. talked to a fella named greg... He said 2 is the norm but since i wasnt big on open pressure like in the 700 range i would be just fine at 3. Ironically after i talked to my machinist earlier today and he echoed what Greg had said. Thoughts?