If I ahd to do it over again most likely I would do a big block. I sold all my BB stuff years ag so I went small block. As already mentioned the parts cost pretty much the same.

My 408 runs on pump 93, it's gone 6.57 with a 1.38 60' at 3260# with 4.10 gears, I only turn it 6400. It has a flat solid cam, 727 with a loose converter. I gave $900 for the Edelbrocks used and spent another $1100 on the porting, it was the best money spent on the entire engine. I drive it quite a bit with no issues at all.

I wonder how it would run with the same $$$ spent on a 511 or bigger.