Mazda Hydrogen Rotary Now Street Legal

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hi all,

im interested in modifying the head. my plan is to not widen the port size as its a small 1.0L engine and i have no intention of getting bigger intake manifold and TB. i also dont plan to smooth out the intake and polishing the exhaust as i already touched the ports and its not that rough with quite even surface, so i thought i could save money on that

i would like to do 3 angle valve job, intake port matching and milling the head, keeping the port size stock in hope of...
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