I've tried everything guys changed the fuel tubing changed the glow plug severl times o.s. #8 and some crap  fireball plugs.  I removed the blue collar and everything.  I get it right and then when I throttle up she acts liek it has too much gas and wants to die and sputter  before going full rpms.   I set the high end and did the pinch test it reved up and died. I am lost .  Had to walk away after 3 hrs and almost crushed that plane