There is nothing wrong with spinning out if you are in the hunt. Beats being 50' behind when you stall out in the next higher gear.
How are you placing; 1st, 2nd, last? How far are you behind the leaders? Are your front wheels skimming the ground or just off the ground the end of the pull? What weight classes are you running? What is the maximum tire size allowed? What tire size are you running? Cut, road worn (sharp), top cut, uncut, etc.?