can some one tell me is 43 psi too much fuel pressure? will it hurt anything or send the access thur the bypass the truck inquestion is one in signature

 

Anything above 19 psi is unused by the VP44, and you run the risk of blowing the front diaphragm.

Now, if the front diaphragm is already blown, and most are after a few minutes of the pressure you list, then I would let it cook and not worry about the issue unless it becomes very difficult to start.

 

Way too much. No more than 25 and no less than 10 at WOT.

 

i installed a fass fuel pump do i have to adjust anything on my 04 2500 cummins?