I have a leak at the intake,exhaust manifold. The engine is a 1991 3.0L. I replaced the gasket and I still have the leak. I used a torque wrench and torked it from the middle out at 25lbs. While I had the manifold off I took a straight edge and checked with a .006 feeler gauge to see if it was warped. I didn't notice anything. Should I just replace the manifold or is there something else I could do. Any help is appreciated. The 3.0 is a HO if that helps. Thanks Tfox The leak is exhaust.