I'm using a fluid filled jobbie from collins.. only because I kept in from the S12 breaker though
theres a guy on ebay selling a turbodisplay unit, gives boost and other info , not that cheap but quite coolio though.
mini oil pressure switches are available in 6 psi, maybe you could use one to run a warning lamp and/or overboost protection ( spark cut )
The emerald software allows you to display inlet man pressure so maybe thats the way forward for setting up dude ??
Still no MS

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