Zongshen RX3 Torque Specifications: Please Contribute!

[Lukas]

Unfortunately fitting this head besides requiring reworking the brackets makes it practically impossible as far as I can see to unscrew the spark plug without at least pulling the tank off, but it is possible that it may require unscre the engine, and since a normal head has 4 valves the difference is small I saw a zongshen rx3 nt250 commercial somewhere on YouTube but can't find it.In the ad it says that supposedly 2.5 horses more, but it is not known whether in the entire rpm range, from what I have read on the subject some sources say that this solution adds power in the lower parts, and others that in the upper parts, i would have to think about it deeply.