THANKS FOR THE ADVICE IM NOT SURE EXACTLY WHAT SPEED IM DOING ,BUT U DO KNOW WHEN HITTING 2 ND IT BARELY SEEMS TO PICK UP SPEED, IS THAT NORMAL . MY FRIEND HAS A KYOSHO ST STADIUM TRUCK WITH .15 SIZE ENGINE AND MY ACCELERATION IS NT THAT MUCH BETTER AND TOP SPEED IS ONLY A LIITLE BETTER IS THAT DOWN TO THE FACT MY TRUCK IS 7.1 POUNDS AND HIS IS ABOUT HALF OF THATC WEIGHT .RIGHT IM OFF TO PORTUGAL FOR A WEEK ILL TRY RUNNING THROUGH THE NEEDLE SETTINGS THA WAY U DESCRIBED AND HOPE FULLY ILL SEE ADIFFERENCE ..THANKS