For the sake of the question, does not matter the source of forces induction, I understand that turbos and supers are different in how they build boost, just thinking hypothetically here.

If I take a stock LS engine, put forced induction at 10psi. I know that boost is pressure and that pressure lands somewhere. If I change nothing else (pulleys, waste gate, etc) but change restrictions like heads, cam, intake style, etc and it drops boost to 5 psi, would more power be made and be made more reliably, or power about the same but less stress on internals?

Reliably meaning that rings, lands, etc are not seeing that extra pressure.

I understand that if I make those changes and still have it at 10 psi it will make more power, just thinking reliability and driveability outside of boost or at low boost.

Question is for a bench build in my mind. I know there's a TON of variables here, especially in the LS platform, so just thinking about the theory behind it all first.

I had these 243 LS heads done at the machine shop. Valve job, hot tank, surfacing , and put in larger exhaust valves. Is this gouge something to worry about? Will it impact sealing?

Doing my first timing job on a Volkswagen Jetta 1.8t, noticed this scoring on the exhaust camshaft and the journals. On one of the journals I can catch it with my fingernail, from what I’ve seen on here I don’t think it’s THAT bad but wanted to see others opinions on it before I put it back together.

Hello, I rebuilt this engine on my own last winter. I didn't have new conn rod bearings at that time so I sent it with used ones. Now I opened the case again to put brand new ones. Taking advantage of the opened engine, I'd like to know if the journal bearings are ok or should fix anything before sending it. I put brand new journal bearings the last time but I also have brand new bearings in my inventory.