[Healeys] Front Bumper Dissasembly

[Mark and Kathy]

For those that have been down this road.   I am disassembling the front
bumper, however the bolts that go into the captured bumper nuts have been in
there for 40 plus years.   Soooooo rather than snapping off the bolts in those
nuts,   what have others done to loosen these up?   I don't see anyway to even
get the "rust buster straw extension"  into these areas.   Is heat on the bolt
head the only option here?

Thanks,   Mark