86chevyc10

ok guys im new here so take it easy on me .... just point me in the right direction .... i have a texas speed cam 232/234 600/600 110 lsa with ls7 lifters ... i used a pushrod length tool to get my rod measurement an came up with 7.325 ...so do i add .080 pre load to that an end up with a measurement of 7.405.. the push rods i have mic out at 7.415 ... ok but here is the problem with these push rods ... i still have valve noise an it looks like when i torque them down its opening my valve about .020 is this normal what do i need to do ?