12 Second N/A Slant 6?

Is it feasible to run high 12s W/a natuaraly aspirated slant 6?

Not talking trailer queen here, but something that could be driven on the street.

10:1 CR 245, 4 barrlel, headers ported heads, drag radials, skinnies, good stal in the convertor, correct gearing, 2600# car.

Not looking to spend big $$$ on the motor, just a well balanced combo working together.

I ran 12 flat N/A in my 4300# '06 Charger that got 26 MPG on the hi-way.

11.3 on a 125 shot.

I wonder if a carefully thought out slant 6 powered '65 Valiant could run low 13/high 12s?

Uncle did it with a 62 lancer. There's no cheap way to go about it though