FPR mod pressure acting funny any thoughts
 

ive got a 95 F-450 and I done the fpr mod on the truck cause my fuel pressure was only at about 42 or a little more well I done the mod about 3 weeks ago and after it was done it went up to about 60 psi. Well when I went into town yesterday it showed on my gauge that my fuel pressure was up there about 72 psi. Does anyboby know why this would be a is it safe to run it that high. Any thoughts and suggestions would help a lot thanks for the input in advance.