I've been mooching to find a small MAP hose takeoff fitting for cast inlet manifolds and carb spacers (most folk seem to stock only BSP-threaded types that need a huge hole and BSP tap). I found this -
Click this, then do a ctrl+f and type in MHM5/4MM
Perfect for anyone struggling to find a MAP source, cheap as chips and only needs a drill and M5 tap to fit. I used an almost identical fitting on my car, with a blob of epoxy on the threads prior to screwing it in, ensuring a perect seal.
MAP takeoff hose union, UK source
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