I just bought an os 120 ax to replace the previous engine on my showtime. I have a xoar 16 x 6 and 17 x 6. I want to leave the tank on my cg like with my previous engine. what pump will i need to do this? I do not want to move the tank up. I hate cg shift in flight. i like it slightly tail heavy all the time for 3d flight. having it nose heavy at first and tail heavy later sucks.

how far is too far away with this motor?

how much fuel tubing can safely be between the motor and tank without fuel delivery problems.

If i want to pump it, what will i use? will it get me the length i want?