In getting his first career win, Zearfoss made a daring pass to the outside of Turn 2 and drove past Josh Beard on lap 22 of the 25-lap feature for the win.
"I knew that I was better than Josh, I just needed to get the opening that he gave me and once I got past him. I knew the clean air would be better rather than being behind him," he said. "I didn't expect to beat him by three seconds."
Zearfoss began racing the 358s at the end of 2011 season. He went full-time last year.
Zearfoss' cousin is 410 sprint car driver Brent Marks, who is second in the points at Williams Grove and Lincoln Speedways.
"We have real different driving styles," he said. "We talk a couple days a week about how the weekend went, how the cars were handling and what we could have changed. We are both busy with work and we are real close with each other."
Zearfoss bought his first sprint car from Phil Walter.
"Phil took me under his wing in the beginning, he's a real good guy and class act," he said.
The 2013 season marks the 14th year for Zearfoss being involved in racing. He's raced go-karts and 600 micro sprints.
He won the first go-kart race he participated in.
"We led every lap and won the feature," he said. "I was pretty much hooked from that win."
Zearfoss noted that he's a hands-on guy who took care of the maintenance for his go-karts and 600s.
The plan coming into the season was to race at Selinsgrove for the points and hit Williams Grove and Lincoln Speedways when Selinsgrove was off.
"We choose Selinsgrove mainly because of my crew chief, Adam Romig," he said. "He felt the most comfortable with the set up and it was a bigger track for me to learn on."