July 3’s Valvoline American Late Model Iron-Man Series event at Mudlick Valley Raceway in Wallingford, Ky., has received a purse boost to $10,000-to-win, a $2,500 upgrade for the winner. The fifth annual 4B4EVER, which honors late Kentucky racer Jackie Boggs, is co-sponsored by Story Realty and Cheap Chevrolet, both of Flemingsburg, Ky.

Among other race and schedule changes for special and sanctioned events:

• June 27-28’s Ross Foundation Sooner Late Model Series weekend at Thunderbird Speedway in Muskogee, Okla., will pay $6,600-to-win both nights. Thursday practice is also scheduled ahead of the Hayden Ross Memorial.

• The Cagle Automotive Blue Ridge Outlaw Late Model Series announced its next race at Lake View Motor Speedway in Nichols, S.C., has been moved to Sept. 20 instead of Sept. 27 because of a schedule conflict.

• The RUSH Crate Late Model Series has added two makeup races. The May 24 rainout at The Dirt Track at Genesee in Batavia, N.Y., was rescheduled for July 22. June 6’s rainout at McKean County Raceway in East Smethport, Pa., was rescheduled for Aug. 1.

• The Titan Legends Late Model Series has cancelled a July 4 event at Centerville (Ark.) Speedway and added a July 5 race at Diamond Park Speedway in Nashville, Ark.