The NHRA Technical Department recently made corrections to the blue print specifications.

Chev 14-16 350 added supercharger pulley size 3.25, lower 8.00

                        Chry 2015 354 540 corrected piston dome height .100 change to .305

                        Chry 2015 392 400 corrected piston dome height .175 change to .185

                        Chry 2015 392 400 corrected rocker ratio 1.80 change to 1.70