I think they have to have correct casting numbers for engine and year. Bet they have a tech check if protested. Granted many wide open rules but I bet they do have some provision to verify.
I know NMCA did when I raced their stock classes. One Pontiac guy with an early SD motor had to come torn down he was so much faster to CC heads and check for porting. One Buick guy was found to have aluminum rods in his motor. Next race he was over 0.5 sec slower!
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Skip Fix
1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever!
1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand
1965 GTO 4 barrel 3 speed project
2004 GTO Pulse Red stock motor computer tune [email protected]
1964 Impala SS 409/470ci 600 HP stroker project
1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs
1964 Corvette Coupe 327 4 speed
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