Thinking of doing a " custom " m90 off a 3.8 tbird onto a 4.6. Just wanted to see if anyone has any experience with this or seen it done or whatever. Any info will help. And yes i know allen-superchargers.com makes a m90 kit for the 4.6 but Im like most people, I dont have 4k to spend. Bought a m90 rebuilt with only 15000 miles on it for 183.00 shipped. Can't beat that. Custom tubing is no problem only problem is a custom intake manifold for the lower intake. ANY info/ideas will help. Thanks!