[ALMACK]

I understand that IHRA is using indexes .3 slower than NHRA.

I am wondering how IHRA determines the current " factored" hp for Stk/SS ?

Do they use NHRA's published hp numbers ?

Also, I heard there was a racer running the same vehicle in Stock as well as Super Stock @ Columbus.

So my mind got thinking....I am wondering if NHRA has wording somewhere that prohibits a same vehicle/same driver running 2 classes at the same event ?