hi guys. just bought a gtp. has 170,000 miles and its ruff. it has no compression on number 4 cyl. i am assuming it overheated to do this. also blows a lil blue smoke out the exaust, and also the oil lite flickers in gear, and the low oil level sensor lites up also. oil is full. i am sure hoping this is not a piston. i am prepared to do head gaskets, maybe a new cyl head... anyone got any idea. i bought the car for 1000. and i knew it would need work. i drove it home. about 75 miles. supercharger was unhooked. bought some parts got the supercharger working, no noises and lots of power on 5 cyl..but seems it made oil leak from the front valve cover and caught fire but i am glad i saw it b4 it did n e damge.