I seem to remember NHRA didn't implement the cutoff switch rule right away when batteries were relocated. I think that rule came later. So in my eyes I'm thinking like Bentley and would tend to believe it's not technically a "day 2" mod. More like a late 70's mod out of necessity if you want to hit the track with a battery in the trunk.
I'd bet someone here remembers when that rule was implemented.
Last edited by x33rs; 05-20-2019 at 02:50 PM.
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