Comparison of inlet ports, i am stealing some photos here so if any one wants them removed just PM me.

Standard MFI

Standard EFI



Karlos NMS beauty


Project rs's NMS head

And finally Juffers Power engineering head



If any one has any more photos for comparison that would be really handy! I suspect that NMS have done more flow bench testing than Power engineering, there are some clear differences between the two as well, interesting that NMS made a clear effort to keep the port shape (the bend) behind the valve, albeit probably bigger, but not hugely larger than standard i don't think in that area, the rest of the port is much larger than stock,

Rob,