I am no pro though,,,but here are my thoughs,,,
You can also add a water/methanol kit for normally aspirated engines so you dont have to run premiun fuel.
Zero deck the block.
A camshaft w/about 204 degrees duration @ .050 will work nicely.
Lumps added.
Remember,,,when you get flat top,,make sure they are flat tops,,no chamfers on the top side ,,,no recessed areas other than the valve reliefs..
MBHD