My setup is a 70 340 block bored .020 for 4.06 and a cast 4" crank = 414 cubes. Been that way for about 8 years now!!!! 11.2 to one compression, ported E heads, 260 @.050 solid cam. Running low 11's at 121mph on pump 93 octane with full timing at 34 degrees.
Probably around 525 to 550 hp at the crank, using different calculators.