for the life of me i can not get the freaking drivers side valve cover gasket off. Im trying to replace my current gaskets and i've worked on just the driver side for bout almost 3 hours and for the life of me can not get it off. are there any tricks to getting this thing off. i really need to get it off now cause i already got the old gasket off and need to put the new one on but cant get the valve cover off. any help will be greatly appreciated.