I recommend the Melling 10295 for all mild to med builds. I personally am running the 10296 (that's the High Pressure/High Volume) pump. I am also using a larger oil filter to compensate for the need for more oil.

The 10296 is rumored to empty the f body oil pans at high rpms (above 5900). Most guys will add an extra 1/2 a qtr or use a larger oil filter, even both sometimes.