Miss at most rpms

[smpiers]

Well, my car is back on the road after 6 years. I replaced all fuel lines, vacuum lines, injectors. Had the FI harness rebuilt (bowlsby does a great job). My problem is I have a miss thru most of the rpms. Miss seems to disappear during acceleration. I suspect MPS. but not sure. Also, I can't get the idle to drop below 1100 rpm. Ideas??????
Any help would be appreciated.

[mejulihn]

We need some more info such as what engine do you have? High idle can be caused by a number of things: vacuum leak, stuck decel valve (also known as a vacuum limiter), idle speed screw too far out on the throttle body, and timing too far advanced, just to name a few.