Quote: This has been a subject of other posts on here but I am working on a w9 port design that right now flows upwards of 445@.850" and very near 470@1.00. Velocity down the port is near 325-335 and about 260ish through the throat....port volume around 300cc....still a work in process...
when you stated this,,,,, and then saying 95-96% throat respective to valve size,,, though you never said what your valve size cause its top secret,, but assuming 2.250-2.300,, implys an mca of 2.8-3.0
really its just simple math,, unless what you have stated is incorrect
