Im in some need of big help! Ive got the B18c1, and i have a pretty hard miss/pingging sound. I did a compression check and my 4th cyl. was running about 260-280, while the other 3 were at normal. I thought that I had a broken valve spring which i took out this morning, yet there wasnt anything that I could tell. Im pretty lost right now. Any advice or troubleshooting tips please help!