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You can feel the torque up at the start of Corner.
My NSR80 is a CircuitSpec., and I used it for the vehicle with the exhaust port processed, the OEM head gasket of the previous period (3 pieces were disassembled into 1 piece and used), Big Reed Valve made by POSH, PWK28carburetor, and CDI made by POSH. I used the attached head gasket (very thick) and measured the compression pressure after installation. After installing the OEM Gasket (3 pieces were disassembled into 1 piece) and measuring the compression pressure, it became 900kpa and there seemed to be no contact with the piston, so it is the impression when running on the circuit.
First of all, the pickup of the middle and the high rotation at the time of empty blowing became good. You can feel the torque up at the start of the corner in actual driving. The exhaust port has been modified. "Use the supplied Head Gasket with EngineNORMAL, OEMcarburetor" If you do, you may get a different result, so please refer to it.
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