is there a difference b/t different brands for glow engines? for example, does a magnum .46 or o.s. .46 2 stroke have more power, or are they about the same? there's actually a considerable difference b/t brands for same size engines. the vmax engines are really cheap, but i'm not sure about the performance. i'm new to glow so any help would be greatly appreciated.

also, what's a decent fuel i can use that's not too expensive. i'm deciding b/t a .46 or .52 for my magic extra. probably will go with the .52.

thanx.