Stage 4 turbo racing cams for Mazda B6 engines. Suits turbocharged MX-5 Miata or factory turbo B6T engines in the Familar. Turbo sizing 54mm+. For high rpm racing engines running high boost. Great with E85.
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- Kelford Cams recommend KVS12 valve spring upgrade. \n
- Please note: Designed for Hydraulic Lifters ONLY \n