I don't believe even the smaller 2.2L screw blower will fit under the hood, and its not enough to feed a 526..With that large of an engine you will want at least a 3.1L or a pair of 2.2L screws or the big 305...

I managed to fit a tunnel ram with efi and a bug catcher under my hood with the Hemi, but it was tight and I lowered the engine as low as it woulg go...I even ground the lowest part of the oil pump where the filter theads on as it hit the magnum force k-member, by just a smidge. A standard 8qrt pan with my car would be dragging on the ground.

A procharger is the only under hood option I know of for a Gen2 hemi...