I finally fixed my head gasket problem, we found out it was the sleeve that I used was too thin on the block. I bought the thicker sleeve now and I have no problem so far and I dynoed my prelude with new South Florida Performance turbo manifold and Skunk2 intake manifold; I make 398.24hp and 303.47 torque with 16psi high boost. The low boost is 12psi and made 352.70hp and 254.39 torque.