Rich,
You have one stout small block ! You must have hit the right carb combo too, your work paid off.
Jay,
You have good torque #'s right out the box, with a little fine tuning it will really be a beast.
I saw a dyno run Sunday of a Hemi Cuda on TV, bone stock it pulled 314 HP. So the advertised 425 HP of the old muscle cars were more hype than real.
Fred,
My old 283 in a '64 nova had a cam and 2 barrel, I had the most fun with that old car, nobody beat it for the 1st block, their jaws dropped when I opened the hood to see a weenie 2 barrel on a cast iron stock intake, too much fun!
Perry.