So.............. non-stock cams, head/valve work, raised compression, titanium rods, port work are all legal? All they are truly teching internally is bore and stroke?

I agree indoors on that track, non-winged, motor is not that important. Listen to anyone's video that has raced there.......hardly ever truly on the throttle. But for national rules on bigger outdoor tracks?? Tracks that can utilize whatever HP you can get out of the motor? Seriously?