Leave nothing out.
It should be decked, and the piston should come out of the block .040-.050 depending on head gasket, heads you are using and final compression ratio. Dude its a 400hp street engine
You MUST set the clearances and the mains MUST be line honed. If main housing is within spec and straight--doesn't need a line hone
If you are having the crank ground, have them grind it to the minimum to -.0005 so you can make the hole in the mains and rods as small as possible. Why does it need maximum bearing crush? again 400 HP street engine
If you are runnnind solid lifter, BUSH the passenger side oil gallery and plug off the driver side lifter feed. Not necessary
Make all the main oil feeds 9/32 to 5/16. Might not hurt although I've never gone over 9/32"
Do not restrict the oil to the rockers. Never have
Use full groove main bearings and if the shop won't use them, get a different shop. Getting some oil to the rods all the time is better than getting it there late. Sure why not?
Order a custom cam. Literally hundreds of catalog cams to get to 400 HP-Go custom if it floats your boat.
If using other than completely stock valve train, use the B3 racing engines geometry correction kit. Look up his web site to see how far off most people run their geometry. Won't hurt but not necessary with the sub .500" lift cam needed for 400 HP[/QUOTE]
J.Rob