Hi guys. I'm not all that new to nitro but I have been away from the hobby for a while and I think I've got a bit rusty lol. I've had a Mgt off ebay and it came with a Picco P3 monster. I've got it started and bottom to mid-range is sweet but when I try to go full throttle it just dies. I've tried going richer and leaner on the HSN but I can't seem to get any improvement. Engine, exhaust and carb all seem sealed well. Can anybody point me in right direction please?