Mac Pro 7.1 to iMac 1.1 with i9-14900KF

Hello guys :)

I successfully installed sonome, but now I have a problem because I would like to change Mac version, I have a processor i9-14900KF I heard that it is possible to change MacPro 7.1 to iMac 1.1 where this processor is then more used, does anyone know how to do this ?

best !!