I just got confirmation from NHRA Tech that TA's Sportsman Rod #1633 has been approved for both Stock and Super Stock for the 1967-1976 buick 400-455. IHRA approved them earlier this year for both classes plus Top Stock. I run them to 7000 rpm with no problems. Thanks again to Mike T. for all his work to keep our BB Buicks' alive and well. Tom Rix
Hey Tom, Thats great news for the Buick guys out there. Keep up the great work and CONGRATS again on your victory at Norwalk! Take Care
