When I started racing earlier in the year, I started with "Another" engine company. Brand new motor, professionally broken in. Maybe it was my lack of tuning experience but I had nothing but trouble out of the motor. Could barely finish a race,multiple flame outs,VERY frustrating!! The first night I put my F 850 in my buggy I won the race. I have completely gone to Alpha since then and may have flamed out twice since making the switch!! I love these motors. Some tease me about my choice of motor but I do not care. For the price,power, quality you can't go wrong with an Alpha!!