alright, I had a look around and there are a few but not a lot of manifold pressure gauges out there, and it looks like most of them are a bit on the lower side of the range i.e. 0-50 or 0-35 which may not be suited to a turbo or compound setup, I get the impression that a 0-80 psi range would be better, or maybe even 0-100.
I think the cooling line from an air compressor or similar with the rings around the line to increase surface area may help, as well as a restrictor orfice and maybe a small collector/volume bottle of some sort to even out the pulses.
Oh yeah, I picked up the flanges today from MSO, they look alright, but I will have to oblong the holes a pinch on the last flange from the manifold.
edit: its too bad they dont make these in a larger range, the price seems alright:
http://www.gbinstruments.com/electr...ectronic-manifold-gauges-electric-gauges.html