OK, i just tried the fpr shim.. read the link to it and the link said my target pressure is 75-85. before the shim, my pressure was about 60psi, after i put the 4-40 bolt in, the pressure shot past my 160 psi guage! what sis i do wrong?? i thought the 4-40 option would be the best, and i could adjust it. i also didn't like the idea of stickin a BB in my fuel injection! any ideas?