What I meant was to make an actual template. Take a piece of sheetmetal/plastic/stiff cardboard and cut it to fit the intake side of your heads w/them on the block. Then do the same with the bottom/intake side of your intake manifold. This will give you actual "parts" you can lay flat on a table (overlay) and will allow you to determine where your problem lies. I suck at explaining things so if this dosen't make sense pm me..