On new gaskets I go in 4 step increments starting at 80 lbs, 2nd step to 100, 3rd step to 120 and final step to 130-140. Use a good thread lubricant like ARP and the sequence should be top center 1st. bottom center 2nd, top right next to center 3rd, bottom right to center 4th, top left of center 5th, bottom left to center 6th.....ect. Clear as mud, huh? For a simple re-torque just pull to 135-140lbs in the sequence described above.