Yes, I suppose we still have some things to learn about porting. When racing flowbenches, it is sometimes difficult to obtain accurate comparable measurements. Here is what the RHS stock port, with a 1.94 valve, flowed on our bench and the same head with our porting and a 2.05 valve.
Lift..........Stock Port 1.94............Ported 2.05
.100...............57cfm......................78cfm
.200..............124.........................147
.300..............184.........................203
.400..............230.........................241
.500..............255.........................275
.600..............257.........................296
.700..............249.........................306
The bigger valve can make a heap of difference!
