390 vs 408

I am curious on the combo for 11.50's myself. Not doubting it at all..just curious.

Don't have any 1/4 mile tracks locally but one guy has a '73 Duster with an insanely built 318 that's running 5.90's in the 1/8. Nobody believes that though. He built it long before there was a such a thing as a "4 stroke crank even available for the LA motors.

I'm trying to do a stock (3.31) stroke 318 to get me into the 7.90's. Go ahead and laugh..it will happen.