Thanks for the info
I already replaced the pump for a new one, same thing
In nose up I open the heedle valve and no effects it looks like the fuel prefers always to go by the returns than through the carb as expected.
I put the return now so close tha almost the carb fiting touches the tee so I am still frustrated with that.
I put the additional tee (I tested the engine this morning at home in my fron yard) and still the engines gets flooded .
I already ordered a new engine a moki 1.35 and I planning to use it w/o pump, I have wasted a lot of money on getting my biplane flying Ok but I have failed, I have to admit it.
Maybe later down the road I will invest the money in a cline regulator which the people just keep saying it's a marvel.
Regards