Steve, a couple of points about my build.
That actually is the case with my build. The point that they're TW heads is kinda moot. They are only 225cc heads and they have excellent flow at low and mid-lift. I actually debated on using 205cc heads just so that I could get a little more torque. But I figured the 445ci would help out with cylinder fill and velocity. The cam is not wild either....just a lowly hydraulic roller...
Actually, I probably wouldn't consider using those heads even on my engine. I just don't think that they would give me the street manners that I would be after.
Is it a tow truck motor? No.
However, it doesn't require a 5.14 gear or a solid roller cam with a huge duration to spin it to 7500-8000 to make it work either.
My engine is going to be a happy medium I think. More torque at 2500 rpm than you can shake a stick at and a higher hp peak (around 6200-6300) to have a little revving fun.
To each their own....that's what makes this sport so much fun.