I read an article in like 2011 where a group of engine builders rebuilt to factory spec and dyno tested the big 3’s performance motors, each one of them produced over 700hp, not the ~350 they claimed haha. I wish I could find the article now, it was a great read.

I’d just like to add to this and recommend interstate batteries. They are a little bit more than house brand, but are much higher quality. For example: Every duralast brand battery I’ve bought started leaking after ~ 3 years. The last interstate I bought lasted for ~ 8 years/90k miles and was like $40 more than the cheapest battery