Tomservo, thanks. No I did not mess with the intake port yet, the main reason for me was to have the H/L needles, really helps in tuning the motor. I believe the carb I put on this engine is a WYK-16, it was a a bolt on to the carb adapter, the engine breathes so much better with this carb and is definitely not starved for gas. I just have not had enough time to mess with it, but I think I'm going to start messing with it again.