1990 300ZX N/A, heads are bad. I am in the process of taking off the plenum and im stuck. removed 8 main support bolts, 2 bolts on the side (pass) and 2 bolts on the other side (drivers). Most hoses are removed, the ones that arent wouldnt be holding it down. It feels to be in the drivers side thats holding it down. The whole plenum lifts up except that one part. Im bout to hook up the cherry picker and yank the thing... Any ideas?