Building a slant for torque
So I upped the head flow to what a good aftermarket small block head can flow... bam... 270 ft-lbs of torque at the same 4000 (1.13 ft-lb/cu-in) and 25 more HP at 4800 RPM to 225HP (1HP/cu-in). Now a bigger cam and carb should help that.
Ok ran that and nope...ran that and not much change. So I did this without opening up the ports in the model. The stock'ish ports will limit power to those numbers. I opened up the ports (head and intake) from and average of 1.3" diameter to 1.5" and now she is hitting a resonant point with VE over 100%!
276 ft-lbs of torque (1.23 ft-lbs/cu-in dang good) at an increased RPM of 5000 RPM and 275 HP (1.22 HP/cu-in dang good) BUT as expected larger ports push the peak number up in RPM to almost 6000 from 4800.
This is all just foot stomping what we already know, we need a better head for a slant..