Totally forgot about the gases in the bay!!!! yikes thanks Simon...
what a cockocany of stupidity that would have been near the exhaust!
I like the plate idea above the plenum as a cover plate also to have
access to the bolts to hold the SCharger as discussed earlier.
That plate will would kill 3 politicians with one sexual smear campaign...
blow off valve effectiveness
cover and access for bolts to supercharger
access to die die-grinding/cleaning/radiusing up inlets tracts

also adds motorcycle valve spring technology to the humble a series :)