Compression ratio for JDM B6??

[quaddawg]

I have a JDM B6, Carbed.. and need to find out what the compression ratio is?


Also, I am new to head work.. how would I find out how much to shave off to get 10.5:1 or so... I want to use the FMS race cam..

Thanks~

[FestYboy]

was it an auto or manual B6? it matters

[quaddawg]

I have no way of knowing, unfortunately, it was purchased sans transmission, from an Ebay seller, before I got the car.