Holley Main Body Upgrade Question

I didn't get the chance to work on the car this weekend because I was too busy running around. I did take it for a nice drive and took another video shot.

Basically, I'm just trying to video document how it's running before I start tuning it so I can see the "before" and "after" effects.

Well here's the video of my cruising down the freeway at about 60 MPH. You can see that when I step into it a little, it goes a little leaner.