Removing spark plugs from a body

1968 Barracuda with a 440 Magnum off of a Dodge charger 72 or 73'

stock everything. 73' Abody front disc brakes.

SO for the life of me i cannot remove spark plug number 4 from my car- fender well is a quarter of an inch away plus then i have my stock header in place which is also in the way.

any one else ever deal with this?
i imagine everyone with an A body BIG BLOCK.

do i have to remove the engine?
can i remove the fender wells?

help...:blob::prayer:
Drill a round hole 1 1/2 inch in line with the spark plug on the fender well through the other side into the engine compartment then you will be able to retrieve the spark plug .