Ringbrothers readies Buick Grand National with 1,246-hp V-6 for SEMA

The annual SEMA show is just around the corner, and Ringbrothers is set to return with three new builds, including a 1987 Buick Grand National with a 1,246-hp V-6 on tap. Ringbrothers is the Wisconsin shop that’s previously brought wild machines like a 1972 AMC Javelin AMX and 1969 Dodge Charger both packing more than 1,000 hp, and the Grand…