Rowdy and Mean 318 build

yellow rose said
Did we not read the 340 build just posted on this site? You are telling a guy he will have to RPM the crap out of something when he does not need to.

He has the same stroke as a 340 with a smaller bore. It will make less HP but not need more RPM.

You lost me. The OP is the one who brought up the 6500rpm. It's right there at the bottom of paragraph 3.

so I can rev this thing solidly to 6500 RPM on a regular basis.

And the title of the thread is

Rowdy and Mean 318

.
And;

Point being I've read that stock Magnums support up to 400 HP and I want to get my 318 as close to that level as possible.

The only way to make power is to process air. If we are limited to a certain head, then Rpm is the only other option. And the same cam in a smaller engine power peaks at a higher rpm. And if you are stuck with a shift split of 59%, then the shift rpm must of necessity increase.
Where did I goof?