One thing I do notice about the 3.7 is it really needs to be above about 3000 rpm to make any steam. Then it pulls really well to 7000 rpm. I think with 3.73 or 4.10 gears and a 4000 stall converter you could get a 2011+ V6 pretty close to the 12s.
'88 Thunderbird LX: 306, Performer heads, Comp 266HR cam, Performer RPM intake, Edelbrock 70mm TB, 76mm C&L MAF, 30lb injectors, 2.5" exhaust, AOD with 2800 PI converter, 8.8 with 3.73 gears, 31 spline Traction-Lok, 31 spline Moser axles. '11 Focus, '12 Mustang 3.7, '17 Accord EX-L V6