A 340 will have to turn to get that HP. Most of the ones I've seen turn around 6500 to get there with rhs/ede heads.

I'd look at a stroker with some heads,IMM RHS, ede's with some work, much easier to get the number and don't have to turn it more than about 5500 with a 3.90 gear in the back. A good working car will run mid 11's or faster pretty and still be docile around the street.