It's not a small block. Does have what I think are bigger than average heads and a smaller cam. We were doing some factory iron head tests and had the Indy EZ heads in the shelf.

440 .030 over, old TRW 6-pack pistons w/ stock rods, 10.5:1 compression, EZ Max Wedge heads flowing 360 cfm @ .700", Edelbrock Victor intake, 850 Mighty Demon carburetor, XE285HL camshaft 241/247 @ .050, .545/.545, 1.6 rockers.

Start dyno pull at 3,500rpm. 500 lb-ft from 3,500-6,000 rpm. Peak torque 543 @ 5,200 rpm and peak HP of 595 @ 6,400 rpm. Don't know if that's good or bad, just is what it is. Never pulled it lower in the rpm range with this combination so can't speak on that.