Agreed. And dammit I wish I completed my build. It was theoretically going to be in the 1.3-1.35 range(according to my cam designer/and dyno tuner). And be under 6200rpms peak rpms. This is always going to bother me.90lxcoupe is making over 1.6hp/cu.in. ... that is pretty darn sporty for pump gas.
Mine breaths through a soda pop straw and makes 1.3hp/cu.in.
Goes to show 1.5hp/cu.in is a reasonable goal when using a good head.