hands. There is no room behind the block with the engine in. You can try removing the master brake cylinder and battery/battery tray but aside from pulling the plenum like you did there isnt really much else you CAN do. Those water pipes are impossiable to remove with the engine in the car. I hate to say it (cuse I am super picky myself) but you may have to just cram it in there best you can and deal with it not looking super awesome till you have a reason to pull the engine later.