I had a MP 360 shortblock once that I put a 557 in. I had stock Edelbrock heads on it,1 5/8 headers,3000 stall convertor,3.91 gears.
Was in our street/strip Duster.
I drove it to work whenever it was nice out,my wife drove it to the local track every week and ran it in the local points races. Ran a best of 11.79.
The car had 3" exhaust with Flowmaster Delta Flow mufflers. That thing got more compliments and turned more heads on the street due to the way it sounded than anything else I ever had.
Streetability is all dependant on the owner.
As A sidenote,my wife came in second in our street class with it her first year ever racing,the next year she moved up to the Pro class and tied me in points.
Keith