I'm using a 306 with stock FPR, 42# injectors, KB blowzilla 8# boost and a 190 Lh/hr pump. Works great, tuned it myself with Tweecer RT and WB02 running 12.5:1 AFR at WOT and idles at 672 RPM real nice.
Don's right, even though his set up is not quite stock.
if all you are changing is the pump, you can hook up whatever size pump you want and the reg will return the unneeded fuel (beauty of a return-style fuel system).