Fellas - I've got a G90 in a Tiger 60 and have been fairly impressed so far. Problem is I'm at 7000 feet and verticals with this combo are pretty disappointing. I've seen a lot of advice on the G90s in here but it seems like a lot of it is conflicting. I'm looking for some relatively simple ideas on hopping up the engine performance (ie carb upgrades, fuel, pipes, etc). I use 15% nitro and have tried both 12x8 and 13x6 APCs. Anyone got any specific recommendations on how to get this Tiger to really purr?