Hello All

Have what I believe is a Model #2300 500 cfm carb on my boat - chev 350 engine- starts and comes to idle no problem, revs to any rpm smoothly - but under load stumbles and seems fuel starved - looking down the throat of the carb I can see 1 side has nice fuel flow,( side closest to the fuel intake on bowl ) as throttle is advanced the other side runs dry in a second or 2 and dribbles at best. I removed the fuel bowl and it is a clean as they day it was built, I removed jets and they are spotless. Any info is much appreciated.

Thanks so much