I will be out of town this weekend but i will soon post a vid of our 7 port and .25 6 port being ran by 2 X-ray team drivers to show that these engines will run with the GO Carb, the most important thing is give the engine moe than 5 tanks befor you start leaning the HS, and you won't go far with it at all maybe 2 to 3 at most, it's in the bottom, the HS is almost set where it needs to be out of the box.