Camshafts Kelford Cams for Mazda Miata 323 B6 NA 280/272

NA Stage 4 racing cams for Mazda B6 engines found in the MX-5 Miata. Good improvement high rpm power. Suited to engines with free flowing intake and exhaust systems, ported cylinder head and higher compression ratio. Great with ITB intake systems. Great upgrade for cars used for race and rally. Kelford Cams recommend KVS12 valve spring upgrade.