Although this would normally be in the lounge, I just thought that a word here might be appropriate for newbies.

BINAB. Bigger is not always better.

Unless it fits the overall plan.

E.g., 58MM TBs
Bigger ignition wires
30# injectors
TH400 Trannies
Huge Cams

I'm sure there are many more.
It's just something that this site has taught me and I wanted to pass it along because it seems to have gotten lost along the way, judging from some of the threads.

 

It depends on your setup for most of those. On a stock motor yeah, bigger isn't always better, but there's many instances where the use of any item from your list could be a necessity.