[Casey Miles]

Stock Horsepower Changes
Complete for 1st half rating period of 2011







Engine OEM NHRA New
Make CID HP HP HP Years Affected


Mopar 370 385-390 404 413 09-10 Drag Pak



Mopar 392 375 399 408 10 Drag Pak



Mopar 512 450 450 456 11 Drag Pak



Ford 330 425 445 451 08 Cobra Jet



Ford 330 425 469 475 08 Cobra Jet manual only



Ford 330 435 464 470 10 Cobra Jet



Ford 428 335 389 394 68-70 Mustang auto only



Ford 428 355 372 377 67 Mustang







Super Stock Horsepower Changes
Complete for 1st half rating period of 2011





Engine OEM NHRA
Make CID HP HP New HP Years Affected


Chev 350 247 279 285 90 GT only



Ford 428 335 350 354 68-70 Mustang