What engine should I run looking for input
 

Ive always had nitro cars along with my electric. Ive had a bunch of on road and off road nitro's But i want to get into nitro racing with my electric racing. But i didnt want to put out the money for the kit and car and other stuff needed. But as it happens I won a Nitro team factory TC3 at my charity race And i want to look into getting a good decent motor for it. I see people are running the os .12 tz motor and the novarassi What engine should i look at. I want something around the 200 dollar range something thats good starts up fine and lasts. I want to race for fun Im a decent driver. But i dont want to be putting 1000's into a motor and a car. What motor should i go with

os 12 tz

yea i just picked up one off ebay. I hear that, that motor is hard to break in. I want to heat it with a heat gun or hair dryer before i first start it. And Should i do the heat cycle for break in. And what fuel should i use I was using dyanimite before but i hear odonnel is the stuff to use