Way to much oil in the valleyt to attempt to use it for pulling vacuum. Been there done that, baffle no baffles don't seem to matter. I have had good luck on my B1 stuff using one of two ways. First if the Star vacuum fitting in the CENTER of the valve cover on the intake side. The baffle fits just between the rockers there. The other is to use the Moroso breather/separator on the valve cover. We don't draw any oil with the breather and the dragster was pulling 10" at idle and 16 down track. My Cuda pulled 17-18 up top and would get a teaspoon per pass typically. The issue with a B1 is the lack of oi return to the pan, that canb leave a LOT of oil in the valve cover. If at all possible use as big a return line as you can, vacuum will inhibit that drainback even more. Sorry these are the best pictures I have available.