i had the boost pump replaced on my 1978 sundowner 180 hp, now when the boost pump is on the fuel presure guage is reading just above the green arc on the guage. should i tee into the fuel line with another guage and see if my aircraft guage is accurate? what is the danger of the fuel pressure being 1 or 2 lbs. high? any input would be great.

steve nelson n274ct