225 Max Performance Recipe?

Wow, thanks for all the input!! So glad I found and joined this forum.
I guess if I want more wow factor at a car show then the 6 all dressed up would be the way to go, but if HP and Torque are what I’m after then I should go v8.
340 or 360 is the next question?
I figure 450hp would be more than enough for my little A body.
Even 400 hp would make most happy.
Factory j 2.02 heads with a 3 angle valve job , kb 107 piston 360 short block with a .500 lift 284 duration cam ,headers, rpm intake w/750 will make about 390-400 hp on a bad day.