2020 Royal Enfield INT 650

[Nu18F]

I had a new 1979 CBX. I sold it after a year and later on bought a new/old stock 1980 CBX but Honda had changed airbox and cam timing and it just didn't have the same roar and top end power the 79 did.

I was looking at the topic Royal Enfield and cams offered by S&S--that engine has roller cam followers. I couldn't find valve sizes , throttle body diameter ect.