I'm not a big fan of sheet metal intakes for blower motors. We ran one on the Pro-Mod I worked on several years ago.....For one run.............Cost us over $3500 to have made. At 1000 ft. the top plate separated from the plenum under boost and caused the motor to go super lean.............Total cost? $3500 for the blower intake, $7500 for the brand new blower that destroyed itself when it backfired, $9000 for a set of heads (lots of damage that wasn't worth the time or effort to repair), and $1400 for a set of melted pistons............Went to an Indy cast intake after that, problem solved.......................