There was some discussion in a previous post about the pulse dampers causing some pressure related problems when placed directly on the rail.

I added four high speed pressure sensors onto the inputs and outputs of the fuel rails, and I think that should enable me to see if such problems exist. I should be able to sample these sensors at 500hz (2ms), which might provide enough resolution to see oscillations. If needed I can swap in some faster sensors.

I must admit the intake manifold looks better than I thought it would.