This a 351 SVO Yates Dragster Header for Cheyenne Stanley. Cheyenne's dragster is powered by a 420 cubic inch Yates head Ford Engine that goes 4.60's. Cheyenne Stanley is a $10,000 Bracket race winner. Cheyenne won the Thanksgiving $10,000 race at Bowling Green last fall 2006. Cheyenne's headers are 2" x 2 1/8" Primary tubes with double throw down Merge Collectors.