Years ago, I met a guy that had moved here from Texas, he was an old Mopar guy. He told me that where he lived in Texas, they raced the 1/4, then continued for 1 mile. His car at the time was a 66 Hemi Sattelite, 4 speed. What he told me about racing 6 pack cars mimics the article posted by Somecarguy. He said in every gear when the Hemi started breathing it would pull out more on the Six Pack cars.

I have no personal experience with a Hemi, always above my pay grade.