Carl Wegner and his team began engineering motors for championship winning NASCAR racing teams with Bobby Allison in addition to local track races. This expertise is carried over to the street engines we build today. Our Pro Touring Engines have established the industry standard and powers top custom cars for builders like the Ringbrothers "Valkyrja", SEMA 2020 Battle of the Builders winner. Engineered with maximum performance and efficiency and trusted by the best in the industry.