Hi Andrew...

It's in the current NHRA Classification Guide which means it's legal for both Stock and Super Stock in NHRA land. 402-375 HP with TH is factored to 395 HP with stock heads. Shipping weight of 3511 pounds, using the NHRA system of factor of 8.89 X factored HP of 395. Anyway, for what its worth, they accept it.

Hope this helps.

Wayne ('Sled)