318 Power, with real street manners ?

I've built many engines. Some full race, others mostly stock. Thinking of building a small block (maybe a 318, since I've got one). How much power/torque is possible, and still having real streetable manners & drivebilty ?
No stupid shaking your teeth cam. No watch the temp gauge every minute. No stupid mufflers (flowMaster type) , so that you can't talk to the passengers. And it would be nice if it got "fair MPG"
Or would a guy be better off starting with a 360 ? Would be nice to run mid 14 seconds.
This would be in a 3600lbs car. And would perfer to use a 998/999 with the low gear set. And probably a Lockup converter (mileage thing).
So how would you build this combo ?

Understand completely, and kind of where i am.
here is my combo at the present in one of my Dusters: