i have bought a complete b20 b block and a complete b16a2 head and i have a B16 Intake manifold and b16 cams i want to take it to a machine shop and get the valve to piston clearance checked because i want to put atage 2 cams in so what do i do? like do i have to get the header attached to the block and then take it to a machine shop or just take them both non attached??????? snf do i bring the stage 2 cams or is it fine to brign the b16 cams ??????