Mine came with a gap that was a mile wide. My car would sputter at higher RPMs, so I checked it, reset it to .008" and it was fine after.

I've never had any problems getting him on the phone to answer all my questions, he's always been super helpful and taken a lot of time to answer all my questions whether I was making a purchase that day or not. Some people just don't deal with email, try the phone if he doesn't answer emails.