[Healeys] Front Cowl

[henry]

Hello List:
I am trying to remove the aluminum  front cowl. (The last body panel)
I have drilled all the rivets. I have removed the front bottom mounts.
I have removed all screws from around the engine compartment.

The cowl feels lose forward of the firewall, but is hard fast from the 
firewall back.
I am trying to go slow and easy, but I can't find where its stuck.
Any advise would be greatly appreciated.

Thanks
Henry 
1955 BN1