OK, I feel really ignorant for asking this but here goes. Is there a trick to getting the fuel neck flapper door open? I bought some Sunoco race gas to blend in the tank before I go to the drag strip. I tried to stick my funnel (trans style funnel) down the filler neck and couldn't get the flapper to cooperate. I didn't want to screw something up so I didn't try too hard. I tried pushing it open with my hand with no luck either. So, am I just an idiot or is there a trick?