There was some question at the rules meeting for Bedrock on Sunday about allowing the Animal motor to run with the Stock classes. Here is a list of WKA dirt series classes. For classes at Bedrock it appears that only the Junior class (Gold Plate) may combine the 2 motors. The Animal will have to run a .505 restrictor. See WKA website for more details.
Briggs & Stratton Speedway Dirt Series
4-Cycle Open
Briggs Controlled Medium and Heavy (Raptor & Animal only)
Briggs Junior Champ (Animal and Raptor only)
Briggs Junior Sportsman 1 Light and Heavy (Raptor only)
Briggs Junior Sportsman 2 Light and Heavy (Raptor only)
Briggs Junior Light and Heavy (Animal and Raptor combined with restrictor plates)
Briggs Light, Medium and Heavy (Raptor only)
Briggs Super Heavy (Raptor only)
Briggs Limited Light and Heavy (Animal and Raptor combined)
Briggs Senior Champ Light and Heavy (Raptor only)
Briggs Senior (Raptor only)
Stock 2-Cycle
Unlimited 2-Cycle
Yamaha 2-Cycle
Briggs Jr. Sportsman Champ Lite and Heavy (Raptor only)
Briggs Animal Medium and Heavy (Animal only)
Briggs Jr Animal Class Eliminated & Combined with Briggs Jr (raptors)
Briggs Super Stock Eliminated
Briggs Jr Animal Champ
Kid Karts
Briggs & Stratton Speedway Dirt Series
4-Cycle Open
Briggs Controlled Medium and Heavy (Raptor & Animal only)
Briggs Junior Champ (Animal and Raptor only)
Briggs Junior Sportsman 1 Light and Heavy (Raptor only)
Briggs Junior Sportsman 2 Light and Heavy (Raptor only)
Briggs Junior Light and Heavy (Animal and Raptor combined with restrictor plates)
Briggs Light, Medium and Heavy (Raptor only)
Briggs Super Heavy (Raptor only)
Briggs Limited Light and Heavy (Animal and Raptor combined)
Briggs Senior Champ Light and Heavy (Raptor only)
Briggs Senior (Raptor only)
Stock 2-Cycle
Unlimited 2-Cycle
Yamaha 2-Cycle
Briggs Jr. Sportsman Champ Lite and Heavy (Raptor only)
Briggs Animal Medium and Heavy (Animal only)
Briggs Jr Animal Class Eliminated & Combined with Briggs Jr (raptors)
Briggs Super Stock Eliminated
Briggs Jr Animal Champ
Kid Karts