TWO engines? So these things have all wheel drive?
Never raced Karts, so I can't offer much on that.
If you can move at all on the Kart, lean in on the turns & "scrunch" down in the straight aways (like leaning forward on a PCJ)
unless it's a streamlined body that molds to the driver.
The best thing I can think of is be patient & you'll take out some of the competition just on that when the get in a hurry &
make mistakes. You want to be aggressive, but not to the point that you're blowing turns.
If you have a chance to get a few laps before the race (I would think you will), hold back slightly. Just concentrate on
"learning" the track. If your competitors are there, look & learn.
Good luck.