I've been looking at all this info on prochargers and it looks like where the supercharger is mounted would not work because of my powersteering is near the top right at the motor vs there pic of a 93 is near the middle on the left side if your looking at the front of the engine and there running a serpentine belt from what I can see. Any info would be helpful. Thanks

'93 454 mags run V belts unless they were modified with a serp kit.

The kit will give you relocation brackets. You have to specify whether you have serp or V belts.

where could I find this serp kit, does it also run the seawater inlet pump

I think about $600 from Hardin Marine