He started from pole for the 15-lapper and went on to win it by 0.797 of a second from Glenn Carstairs and Tom Hooper.
Johnson is part of a strong field of 25 drivers to nominate for the second round of the series that will be held this Saturday night.
Other notable nominees include Matt Brown, Chris Dymock, Steven Ellment, Tom Hooper, Craig Bottrell and Adrian Haywood.
One interesting nomination is that of Alfonso Guadagnino from Manjimup who is usually seen in a speedcar here at the Motorplex.
It will be interesting to see how be adapts to the different class of vehicle.
The Formula 500s joins the Wormall Civil Sprintcars, TW Mechanical 360 Sprintcars and Limited Sprintcars in what will be a big night of Super Speedway action.