revmeuprx7

hey guys needed some imput on what my problem might be. Got a 93 with upgraded injectors 1200cc. I constantly montor there output with my apex avc-r and noticed that every once in a while the percent of there output will spike up to 80-90% sometimes even higher but just for a split second and then go back to normal 20% or whatever they are putting out for my driving condition. When I push full boost which is 15-16 pounds my injector output is never higher than 75-78% and thats pedal to the metel but for some reason when I am just cruising or whatever I will see the percent spike up high. Anyone know what the deal is? injectors dirty? Need new fuel filter? bad injectors? any input would be appriciated thanks guys.