Cam degreeing. I totally don't understand.

so what type of performance issues would arise going dot to dot vs degreeing? has anyone experienced a "revelation" when degreeing as in the car **** and git way better than dot to dot?

Sadly, things can be more than a bit off. I've seen timing marks over 10 degrees off, but can't remember cams being that far off. If you find TDC and degree your cam at least you will know it is installed in the right relationship to the crank and you can check your timing correctly. If you set your timing to 10*BTDC and it is really @tdc that can make a noticeable difference. And I only worked in the good old days when stuff was made right...