March 6, 2017
The NHRA Technical Department recently made changes to the Class Guide.
1977 Buick Regal 350 170/287 change to 350 170/270
1977 Chev Chevelle 350 170/287 change to 350 170/270 auto
1977 Chev Chevelle 350 170 270 change to 350 170/275 man
1970 Dodge Challenger 440 390/400 change to 440 390/382
1964 Mopar 330, Savoy 426 425/415 change to 426 425/405