Bear, please don't assume that "porting" always equates to all out "racing head" reworking. Creating better port efficiency in exhange for less turbulence & inefficiency--even at the sacrifice of a few measly cc's of port volume--can do wonders for both power and fuel mileage at the same time. Frankly, a more efficient port can have a greater velocity at a given rpm than a smaller, more turbulent/less efficient port. The final results can include improved mileage by greater than 10% (in the case of the carbed 460) and at the same time increased throttle response and overall general power. I personally have proven this over and over again in vehicles I have owned and many customer's vehicles alike, as have others I'm sure. Ports can be resized and reshaped for many different applications, not just all out top end horsepower.

Paul