RE: engine woes....
TT engines have a spectacular reputation. Your problems stem from your inexperience at tuning -- not the engine -- get help at the field if you can.
Meanwhile, which TT engine is it -- a GP 42? A TT 40 Pro? a TT 46 Pro? -- we need to know in order to help you.
Be specific in you descriptions -- what exactly is happening, & in what sequence?
What have you done to try & correct this problem?
Some serious advice -- absolutely stay away from the Tower 46. It is a cheap copy of an old Super Tigre & it it is a poor quality machine. Your TT engine is a vastly better piece of equipment & if you think that you have troubles now -- just wait & see what happens when you buy the Tower.