Cam bolt torque

funny, thats what I have been working on all weekend. upper control arms for my 68 Barracuda FB. Anyone got any tricks for getting the old cam bolts out. I twisted the nuts off of all 4 of them. One side, I got one to drive out and i had to torch the other out. I am over to the other side now and I can't get either of them to drive out. The problem with the torch is the rubber starts burning and I don't want to blister the new paint.