Hey ya all! So I recently brought an old 20r cylinder head in to get rebuilt to a machine shop. Once getting it back, installing it, and installing the intake manifold I cracked the intake. Got another one and I am now maxed out on torque specs and still getting a decent air leak from the seal to the head. Are there anyways to fix this with some rtv or anything else that will be just as good as a seal? Also I got the intake from the same head I had rebuilt which tells me the machine shop made the error. Is that common they would mess up the intake side for a good level surface or could this be just the head was warped? I spent $260 to have them rebuild it. Should I just take it all off and send it back to them?