Pulls to right

My 68 Valiant, 512 Drag Race car, pulls to right on hard acceleration. It has a ferd 9 inch rear end, 4 link traction control suspension, with coil overs. Not sure what's wrong here. Can it be adjusted to keep it from pulling right on launch? Not too informed on this type rear end set up. It has a full roll cage, and 13 inch slicks. Thanks