Manifolds

I am having a hell of a time getting my manifolds off, i gave up today cause i was getting too worked up. Im positive i have all the nuts off, i have 12 and the manifold connector bolts out and the damn things hardly wiggle and ive been beating on em for a while. Looking for suggestions or a solution. Got frustrated and jacked a screwdriver in there to separate from the head haha so it has to cone off now.

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Go over to mymopar.com and look in the service manual downloads and download the 65 Plymouth service manual. That's the closest they have and it will be about the same. They outline the manifold attaching hardware, I believe with a diagram. Nowhere in the manual will you find the procedure of jamming a screwdriver between the manifolds and head to get them off.