How to run 12's?

[Skyman]

My car runs 12.5's and it still got A/C. I just pulled the rear seat, but Im sure it'd still hit 12.5's with it in. I dont think it even lost hardly any weight at all. I just dont want people to have the option to ride in the back

SKy

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-1989 Saleen Mustang #406- TFS Heads, E-303, edelbrock intake,70MM TB, 73mm MAF, off road H, headers and 3chamber flows.
12.55@107mph
Runs on 87 Octane and gets 24mpg!