350 hp out of a fairly stock 340

It's a 1970 block with KB dished pistons at zero deck.
I knew I would get beat up saying I thought the 275 HP was pretty accurate but lets see a dyno sheet on a totally stock 340.
Don't get me wrong, I like the 340's but I just don't believe some of the wild claims people make about them.
all due respect
nhra rates the motors based it takes this much hp to run this mph at the rated weight
its not a wild claim its just the same as 1 plus 1=2
Some motors are over rated from the factory by all gm ford mopar
340 rated 275 nhra 295 to 315
383 rated 335 hp nhra 310
396 350hp over rated not going to look it up
426 hemi way under rated
mph and weight= hp pretty simple