I am a new member and I am searching for some advice for finding a miss in my late '99 F350 7.3L. At first start up it has a real defined miss. The miss never goes away by it does seem to lessen a little as it warms up. It does blow a little blueish gray smoke at start up, more when cold but still smokes when starting up warm or hot. At low RPM's the entire truck shakes sum and the gear shift really shakes around. First, whats the easiest way to determine which cylinder has the miss, second can I just rebuilt that injector if that's it, and third where can I get the rebuilt kit or o-rings?