I've had a M1 in storage for 4 years, bought it from a guy I traded my 15" wheels for R/T's. Today I decide to give it a once over and noticed it's the 4bbl version. I have the adapter for 2bbl, but I'm not looking to mod my motor that much. I know it's for highly modded motors and will not suit my purpose. Well if anyone want to trade their 2bbl for my 4bbl, let me know. Other than that it's useless to me.