I got the same kit from Brewers, but mine isn't right. I'm thinking it's cause my motor is jacked up with shims cause of the fenderwell headers. Other than that, most people don't have issues with the Brewer's kit though. I'm not running under chassis headers either.
Also, it clears so much nicer than the Lakewood, which is what I was really wanting to run. Know anybody that's wanting a new Lakewood bell for small block/833?