"1988" 454 Mag to 496 HO ???
 

I've just replaced my tired 454 mag (1988 Formula 242LS) with a full dressed 2002 496 HO from Victory Marine. The engine mounts in fine though tight. Where do I go from here? None of the wiring appears correct. What will I need to change? Will I be able to use my 1988 gauges. What is the proper way to complete this installation?

I appreciate any input/adivce you all may have to offer.
Thanks,
Butch