I'm not a very good guesser on et's or hp, but from looking at your combo I would have to say you would definitely be better off with the 24's, heck I had less than you've got on another car and I ran at set of 30's.
I've seen 19's run 11.80's in the 1/4 but the car was leaning out on the big end.
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91 single turbo vert
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