If it is any consolation, mine has a class 2 leak after head gasket replacement, too. It is on the front corner on the header side and I did have the head decked, cleaned the block thoroughly, and torqued the bolts correctly. Contrary to conventional wisdom, I used the VR head gasket, which I knew could be my undoing, but the repair budget was getting exhausted and I had to get the engine back together.
If I get the car's cosmetic issues fixed, I will look into a twin cam swap anyways. I really like the M20, but I don't know if I will ever make this one completely satisfactory.
I did find that re-torquing the valve cover nuts helped reduce the leakage some. It may not be the head gasket that is causing the drips, it could be the cam seal (which I replaced) or those rubber rocker shaft plugs (which I also replaced).
If I get the car's cosmetic issues fixed, I will look into a twin cam swap anyways. I really like the M20, but I don't know if I will ever make this one completely satisfactory.
I did find that re-torquing the valve cover nuts helped reduce the leakage some. It may not be the head gasket that is causing the drips, it could be the cam seal (which I replaced) or those rubber rocker shaft plugs (which I also replaced).
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