So I have an old AMT Mercury (About 16lbs thrust) and an old BVM Viper with a viofan and KBV77 in it. Was thinking maybe the mercury would be fun to put in there. It's an original viper, not an ultra viper. I know it's been done, but wondering what were used for tanks, and any other things guys did to them. I wouldn't worry about a bypass, the Mercury I have is air start. Just thinking, maybe it's a poor choice, if so let me know