okay i replaced my valve seals because i was blowing blue smoke out and after i replaced them it was running fine then about a weeke latter the car started acting up with the idel it will onyl do it sometimes not all the time. the idel will sit at about 900rpm when it used to sit at like 600rpm and then the idel will bounce around it will go so low on the tach like below 100rpms and the car is almost ready to stall out but it wont so im not to sure about that and then another thing is im burning so much oil it isnt even funny im going through about 4qts every 1000miles and im evening running a heavier weight oil to try and slow it down. so im thinking that its A. my head gasket B. Piston Rings or C. my valve seals are shot agian for some reason. but i dont know and im really stumped on this one if anyone has any ideas that would be great.

Thanks