Dec. 13, 2021
The NHRA Technical Department recently made changes to the blueprint specifications.
Buick 1979 350 160 added alternate manifold # 14007376
Chev added 346 305-320 combinations 1998
Chev added COPO Camaro combinations 2022
Chev 16-20 LT engine added alternate cylinder heads
Chev 12-15 LS engine added alternate cylinder heads
Chev 69-70 230 140 added alternate manifold # 3859381
Chev 69-70 250 155 added alternate manifold # 3859381
Pont added 346 305-320 combination 1998
Pont 1979 350 165 added alternate manifold # 346248