cant mess witht he 440 motor wise and yes theres a 600 mod class as well at the national level.... at regionals we have a 500 and under stock class a 600 and uder stock class and the 600 mod classes aswell..
they used to have a 800 mod class but insurance dropped it...
this is also the last year of the 440 next year it will be a 600 stock and 600 mod classes
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