with the two center ones having problems i would suspect a warped head and leakage between them.... i would want to check the head flatness myself. just to be sure.

the two center ones leaking in the rings seems a little suspect to me.

tom w

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.