360 magnum horsepower guess

1st Dart had 340 w/4.56's and F60-14's. It gets on your nerves after awhile of highway driving...nothing that a good stab with the right foot doesn't take care of.
I know that it will the fartherest I will drive it will be car shows within about a 60-70 miles radius
Mostly to Old Town in Orlando which
Is about 45 minutes away
It is going to be a sleeper other than the wheels it will look stock
The exhaust will thru chambered mufflers with not much lope as the cam is lsa 113