Hi evryone, Just came back from holiday, and with enthusiasm i tried to run my car... However, it just didn't started... :S It is making noise starter is working pump is pumping carb is carburing

Distributor is making sparks but no sparks on spark plugs... :S Weird isn't it ?
So i tried to see if they weren't any electricity, just putted a screwdrive in the spark plug cable an check like this, the sparks are just very weak i must put the screwdrive on the engine to see the sparks... :S
Anyone got an idea about why it is like this?
PS:The car worked finely couples of weeks ago.