775 hp - 470 with 270 heads

I went back and looked at the data a little closer and I'd say the Wilson porting work on the Indy intake was worth up to 30 hp but it really depends on the RPM. The biggest difference was at speeds higher than 6000 rpm but we only pull to 7000 on the dyno so that doesn't give a lot of data points. This is just a pump gas engine so a more serious race engine would show a bigger difference between ported and un-ported intakes.