now i have about 20 flights and the last time i went to fly and everytime i turned inverted or was in a up or down line,
the engine wanted to quit.
Check your pulse line from the base of the carb block to the carb. Make sure it is sealing on the nipple at the base of the carb block. I had one split right at the nipple and it caused the same problem you describe. If it is spilt or not sealing good you will probably notice some fuel on the back of the engine and on the firewall were it spit it out of the line.