[Mike Gray]

I'm more confused, did they make larger pulleys or just claim the wrong engine?
Both are wrong and is not a gray area but cheating. One can be "oops used wrong note" the other is blatant in your face cheating to win and deserves a much harsher penalty.

NHRA Technical Specifications
For
2019 Chevrolet Motors


Issued: 1/26/19 PC
Revised: 2/14/19 PC 1/1/20 PC, 2/12/2020, 1/1/21, 2/12/2020, 1/5/2021, 4/23/21, 6/29/2021, 12/3/21, 12/16/21, 9/18/22, 1/1/2023

HP Disp C.R. Ind. Make Model/Transmission Manifold R.R. Lifter Head Notes



600 350 12.50 Supercharged Magnuson 60-02-00-015 1.80 H/R 66.0 2,3,6,7,A

630 350 12.50 Supercharged Magnuson 60-02-00-015 1.90 S/R 66.0 2,4,6,7,A

Notes

3 = Supercharged Magnuson pn# 50-00-26-002 3.350 inch pulley, lower pulley 8.00, jackshaft pulley 32 teeth, rotor pulley 34 teeth

4 = Supercharged Magnuson pn# 50-00-26-002 3.350 inch pulley, lower pulley 8.00, jackshaft pulley 34 teeth, rotor pulley 32 teeth