Admittedly I do not have an A-body, but an Early B-body is also pretty narrow. My stock magnum small block manifolds exit in nearly the EXACT same spot as the hemi manifolds. They kick outward towards the frame rail with both motors.
Small block is in the car and running, Hemi has already been mocked up for potential future replacement.
Just take your time, and plan out your hot side routing carefully... you'll be able to make it fit...
By the way... if it makes you feel any better, you're not dealing with any specific hemi problems... you're just dealing with general TURBO fabrication issues!
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