We (Massive Speed System) DOES make a CNC ported head based off of the (superior) SVT casting.
Equipped with custom Manley oversize +1mm stainless valves, Supertech single groove keepers, CAT high rate valve springs and retainers, Massive blue Viton stem seals, etc. Full port work, valve job and chamber reshape. Flow 298 CFM on intkae side @ .500” lift measured at 28” of H2O.
Let me know!