The current crop of Comp Eliminater and Pro Stock engines have reached a development point that 1.6 Ft Lbs of Torque per Cube and slightly over 2.6 HP per Cube are realistic goals. Building for Torque vs Horsepower is something of a misnomer, since a big HP number is really just a conversion of a big Torque number at a higher RPM. A rising or dead flat torque curve is the fastest way to increase HP, since the same or higher TQ number at a higher RPM increses the HP equation the quickest.

TQ x RPM/5250=HP

In order to move the location of the TQ peak and/or increase the TQ output, generally the MCSA will need to increase, it seems to be a defined TQ predicter for a well developed engine.