Ive have about a quart of nitro through it, Ive been anal retentive keeping it rich. Im also tweaking with other parts Ie setting the brakes just the way I like them. I have to mess with the suspension because Im getting the rear wheels hopping around turns (need softer springs?) right now Ive been keeping the motor under 200 degrees, does anybody know the most efficent operating temp? unfortunetly Im might not be able to use the car this weekend due to commitments. But I might try to at least burn a tankful if Im able.