Ben Rhodes bounded to the top of the speed chart in the final minutes of the final practice session with a lap of 182.834 mph.
He beat Grant Enfinger (181.873 mph) by .151 seconds - nearly a full mile per hour.
Chris Eggleston (181.622), Matt Crafton (181.232) and Brandon Jones (181.190) rounded out the top five.
Noah Gragson appeared to blow an engine during final practice, causing an extended delay for cleanup. NASCAR extended the session to noon (five minutes) as a result. He was fourth on the speed chart at the time with a speed of 180.977 mph. His speed eventually landed seventh on the chart.
Justin Haley - who was fastest in the first session - was unable to back up his speed and posted the 15th fastest lap (180.000) in final practice.
Johnny Sauter had the quickest 10 lap average of 179.411 mph.
Haley posted the fastest single lap in the first practice session for the Buckle Up in Your Truck 225 at Kentucky Speedway with a speed of 182.076 mph.
He beat Stewart Friesen (181.788) by .047 seconds.
Myatt Snider (181.616), Brandon Jones (181.336) and Dalton Sargeant (180.947) rounded out the top five.
Gragson had the quickest 10 lap average of 180.112 mph
Justin Fontaine (176.840) posted the most laps with 33.