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90lb seat pressure at 41
Kelford Cams recommend KVS1518 valve spring upgrade
0mm Installed height / 246lb @ 13mm lift / Coil bind is at 25
Still maintains full use of Valvetronic and Dual VANOS for good throttle response and wide power band
Miata 323 B6 NA Cams | 203-D 90lb seat pressure at 41NA 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.
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