Gene:

r I often see  these  in the metered hose at the flow divider inlet, I was also told it is best to have as much straight hose as possable on each side of transducer   {no 45 or 90 degree fittings}   Is one location prefered, IT looks difficult to do the straight thing on top of the engine. 

Make every effort to not use 45 or 90 degree fittings. They really do mess things up.

Walter