Factory Stock (formerly Pure Stock) boats must be produced and offered by manufacturer with seating for a minimum of three adults.
Engines must remain completely stock as produced with the following exceptions:
- Airbox may be removed
- Rev-limiter may be removed (carb motors only)
- Oil injection may be removed
- Exshaust inner liner may be removed & midsections may be drilled to releave exhaust.
- Aftermarket external exhaust snouts are allowed
