D16Y8

Almost finished D16Y8 head. Need to buy a grinding stone to reshape and clean the exhaust valve seat angles, check the seal of intake valves and cc the chambers and done.
this cylindder head is going to be raced with OEM camshafts, so the goal was to achieve the maximun flow at low valve lifts. finally, achieved 205CFM at .380" in intake and 182CFM at .3"  in exhaust. Thats an increase in flow of  > 15%, combined with a jaas flowed intake manifold, which is a estimated gain of 6% more of airflow.
Bear in mind that i always mention airflow, but most important is the speed of that airflow, which raises your volumetric efficiency and fills the power(torque) curve between the maximum torque point and maximum rpm.