Another 318 build, and questions. (LONG)

Running clearances and top ring gap on KB pistons are a bit different than OEM specs. Honor the KB specs.

I'd degree the cam per the cam card, no need to advance.

Since you're running a lockup, why not a higher stall RPM? 2300-2500 wouldn't be unreasonable.

No need for HV oil pump, factory LA engine oil system just fine. Put that money towards windage tray.

That intake has the advantage of being free if you already own one. Performer RPM would be my choice. Same with carb. I wouldn't go out of my way to run a 4175.

Otherwise seems reasonable. Down the road you would benefit from headers, but the cost.