Can you tell us more about the combo the cams were specced for?
Twins or single?
Boost?
Turbo size?
Exhaust housing size?
Cubic inches?
Compression ratio?
Intended powerband?
With that much lift and duration plus the fact that they are designed for 7500 rpm and 20+ psi of boost, I would think they need pretty heavy springs which would cause vct issues. So lockouts would be my guess.
With that much lift and duration plus the fact that they are designed for 7500 rpm and 20+ psi of boost, I would think they need pretty heavy springs which would cause vct issues. So lockouts would be my guess.