RE: found os 18 TM for $149
it is a very good engine. i ran one on my max before i upgraded to the .21tm. tuning is a breeze and it still has great power. it would make my max do wheelies while running big joes. as for the carb question, it should come attached. ive only had about a gallon and a half through it, but it still seemed like is was getting more and more power through that first gallon. when you first get it, do the heat cycle break in, cause they like to run hot while breaking in, both my .18tms and my .21tm have run hot for about the first 1/2 to 3/4 gallon of fuel, and take it easy on it for the first gallon or so and it will last forever. im not sayin you just have to put it around, just no extreme stuff.