Nick's Garage dyno's a 318 Stroker.

ir3333 said
Nice engine for sure. But shouldn't a 10.50 compression big block with ported heads, 2" intake valves, performer RPM intake, 750 double pumper and .525 lift cam make 400 hp.... or more?

That's basically the 400 hp recipe for a sbm, the 3 400hp 318 builds out there are similar spec's and a few 400 hp 360's.