I'm just wondering if anyone here can provide first-hand knowledge about the new BBK 4.6l SOHC valve covers. They look awesome but all I've heard is how they're next to impossible to install due to the allen junk. I do all the work on my car myself and like to think I'm semi-proficient at what I do, but I'd like to hear from somebody who has actually performed the install in order to determine if the covers are infact within my skill level....They sure look amazing though!