knoxville IA_DSC0384_3856

knoxville IA_DSC0384_3856

Brock Zearfoss (#70) and David Gravel (#41) racing for the lead on Thursday at Knoxville Raceway. (Mark Funderburk photo)

Brock Zearfoss (#70) and David Gravel (#41) racing for the lead on Thursday at Knoxville Raceway. (Mark Funderburk photo)