I had that problem when the blower was installed. I cut a small section on the blanket where it was hitting, and thought that would be enough. I then saw where it was contacting the hood above where I cut the small section out. Lower engine mounts? I didn't want to do that. I put my underdrive pulleys back on and used a 3.25" pulley.
That lowered the boost some (where the engine will live longer) and has solved the clearance problem. I originally was showing 9-9.5 psi boost and now have 6.5-7 psi. I can tell the difference, but i know this level is much easier on the engine.
2013 GT Premium, Red Candy Metallic, Brembos, Auto, GT500 Axlebacks.
SOLD! 2008 GT Premium, Vapor Metallic, 5-speed stick w/MGW, Ford Racing M6066 Whipple S/C, 3.31 gear, GTA's. GT500 front end, spoiler, suspension and wheels. Sequentials and one touch. - can't wipe the smile off my face.