I agree with you Jim, but consumers aren't wanting mild heads. Most of the people that call want a runner maifold and a 300cfm intake port on their street truck with a 62mm s300.
If you look at the flow charts with an unported head, cut .060" off to put the valves in the cylinder and a 30 degree intake, the flow is off the charts in the lower lift ranges. It starts to get close to some really nice 24v heads. With the mild clean up job, not the full tilt port job, the velocity is amazing for street trucks. Throttle response, smoke reductions etc. This is what I recommend for most street trucks due to the fact that they have no more than .520" lift at the valve. With a street cam, 45 degree intake angles are pissing in the wind. Sure it will flow better at .700" lift, but you will never get there.
For all out pulling trucks, a full port job without the factory intake is in order. Sure you will lose a lot of velocity at the lower lifts due to a port that is 50% larger, and in turn lose throttle response, but how many pullers do you know that are worried about their performance at 1,500 rpm?
