1968 Barracuda 383 Fastback

I decoded the engine block #
It is a 1964 casting 426 Wedge
This engine made a lot of Horsepower
It ran 12.7 @ 108 on tiny F70/14 tires
It might have run in 11's on slicks?
I have now put 14 inch Formula S Black
wheels with BFG TA tires with only 1000 miles
on it.