11 second smallblock...how would you build it?

You have tons of experince and a a great running car...how much HP do you think my 340 makes based off averages? 10.1 340 .040 trw's stock rods stock crank 308 heads unported witha 2.02 intake valve 1.5 roller rockers Torker II single plane intake 750 hp holly comp cams hyd flat tappet .508 nostalgia plus its 248/252 at .050 msd 6 AL and 1 5/8 headers. Whats your educated guess what it makes?

What it makes on a dyno would be different than at the track given air quality differences. What does your car 60ft.?
I'd guess your making close to what the calculator says. But it's not a real tool to measure by. I've run alot of different known cars through some of these calculators and some are dead on or close, and others are way off.
Alot of it is converter and chassis. We race cars not engines. I just know that a true STREET car that is traction limited AND LAUNCH LIMITED will need more HP to get in the 11's.
Where you race is also important...it takes more power to run at 3000ft than at 500ft. above sea level.