Flow numbers

Stock is around 210 cfm, light bowl work and gasket match around 230ish, heavy bowl work, short turn work. Guide profile, and deep gasket match with pushrods pinch worked 260ish, 2.05 to 2.08 valve, tubed pushrod pinch, max bowl roof work about 280cfm. This is all with a top notch 4 to 5 angle valve job and good nailhead ferra or equivalent 5/16" stem valves