My e30 m42 turbo on stock internals (machined pistons to 9:1cr) is running 23psi just fine with remapped ecu and 440ccm injectors

UP the boost

But your intake manifold seems nice! any chance you can make one more and ship it to norway

? I have the s50 itb setup but are struggeling to get a good plenum...
Nice build anyway

thumbs up!