I have a 1997 5.7 engine with roller cams and vortec heads, I have a cast iron 8 bolt intake manifold with an Edelbrock carb. mechanical fuel pump. I found a boat with a cracked block for sale. 1999 sea 210. has a 5.7 merc. with fuel injection. which way should I go......swap carb set up for fuel injection? Is this feasable? could I do it the other way....keep carb set up? Will there be wiring harness issues or other issues I dont know to ask about?