2.4 Hardbody want cruze?

I have a 94 Hardbody with a 2.4 factory everything but a fuel cell and an in-line fuel pump which is rated at 45psi and the factory calls for a 43psi. It runs normal sounds like a little random miss at idel and if i were to cruze at any speed the truck starts jumping and sputering really bad. when i accelerate it does fine. can show one help me. thanks alot.