Can someone please give me the 30HP gasket number. I have a 2002 Nissan 25 HP that was suppose to have the "jets changed" to the 30 HP ones. The person that sold me the motor made this statement and I knew they didn't know what they were talking about. I took the metal gasket out and it has a rectangular slot measuring around 7/16" width X 1 1/2" length. Is this the 30 HP gasket based upon the slot size? Thanks in advance for the replies.