I just installed some cometic gaskets on my s/c 306. and it looks like one of the head gasket is leaking. anyone else had any problems at all with these gaskets? I just had the heads milled a little to make sure they were straight and everything went together good. I've been driving it about two weeks and I noticed a small drop of oil on the garage floor everynight. I checked the intake, valve covers and they look find. The block is wet all the way around were the head meets the block, but only on the driver side head. Anybody have any ideas?