I need to adjust my intake valves the middle is close to slam shut. The outside are at a .102 and have a 170 in them. The middle has a 155 to 160 in it. What should the two outsides be shimed to along with the middle? I was thinking that the two outside need to be a 165 and the middle needs to be a 150 to 155 depending on the measurement of the shim. one more thing can they each measure diffrent as lang as they are within range.