I put a 150 shot from nx, when I put it on the dyno it gained about 115 hp....does a 150 shot not give you 150 to the ground....first time I tried I though it was because of the bottle not being full, I just tried again and same thing happened......any one have something like this happen to them?

 

Even with a full bottle you may not be at the correct pressure if the bottle temp isn't there.
Are you an a-4 with a stall?

 

No, its a m6