Shooters that vaporize fuel

What's a heavy race track? I'm sure they're all heavy with all that dirt and asphalt.
I suppose your right. lol. In dirt circle track racing a heavy race track is when a track is transitioning from muddy and slick to muddy with a lot of traction. The kind of track that really pulls all the horsepower you have out of the motor. Run in the corner hard as you can then back on the gas hard. The opposite of a dry slick track.