I couldn't get the Tomei head gaskets to seal. Went thru two sets and a total of 3 different holes blew out the firing ring. Went back with stock head gaskets and didn't have an issue. After the first time the head gasket blew I had the block o-ringed and ran a copper ring placed in the center of the firing ring on the Tomei MLS gasket. It failed in 45 minutes of run time. It looked like the pressure went past the firing ring and then underneath it and pushed it back into the combustion chamber. I put the stock gasket back on with new copper O-rings and it held. Felt I should share that since I hadn't updated my profile....
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