My truck has an Edelbrock Torker II intake manifold on it currently. I am trying to remove it and have run into a snag. The mount bolts on it are a 8mm Allen Key, and the middle 4 bolts are impossible to get at because of the design of the manifold. Is there a special wrench that is needed to get them out? I've tried 5 different 8mm wrenches and 2 different 7mm (trying to wedge it at an angle). Please help a brotha out.