you can see where i was coming from when i was talking about the efi vs carby thing hey, but don't give up
do you know what comp ratio your running , i'm guessing if they had std chambers in the head (have they been modified?) with a std deck height and the 2mm plate you could be around 8:1 so it may need more boost to get it wokring better ? , but then you may have dramas with ignition timing, I would take both your dissys down to somewhere that can tell you exactly what ignition advance is in there, on the other hand if you ever want to convert to coil packs i should have the bits, but it will cost a bit initially, it could also come down to cam specs with a close LCA, any info on the cam ? Good luck