318/340 questions please help!!

Don't you have somewhere else to be stupid?

The OP clearly states he wants a 318 or 340...........

Why must you guys keep pushing the 360? Blind/deaf/dumb/impaired or what?

They are all of the above.

I say get the 318, too. Even with 302 heads, (if you can find some uncracked ones) even unported with stock valve sizes, 400 HP is not an impossibility with smart parts choices.