The compression for my sunny's A14 engine follows as Cylinder 1: 125, Cylinder 2: 75, Cylinder 3: 100 and cyclinder 4: is at 120. Note that the car runs fine as is.

I whiped the head of it and from what i can see i cant find any blow out marks on the head or block. Looking underneath the head the valves dont seem to be damaged, they sit fluch to the head have no punctures or damaged edges. Any advice on what my problem is? could it just be the head gasket?
thanks